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What is the best alternative to Email + PGP?
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TextSecure
All
5
Experiences
Pros
3
Cons
2
Top
Pro
Strong encryption
Uses Curve25519, AES-256, and HMAC-SHA256. The security of these algorithms has been tested over many years of use in hundreds of different applications. Messages sent via TextSecure are end-to-end encrypted, which means that they can only be read by your intended recipients. We make it easy for you to verify that you are communicating with the right people and that no MITM attack has occurred. The keys that are used to encrypt your messages are stored on your device alone, and they are protected by an additional layer of encryption if you have a passphrase enabled.
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Con
No data messaging
TextSecure can send SMS and MMS messages only. It can't send data messages.
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Top
Pro
Free and open source
TextSecure is free and open source, enabling anyone to verify its security by auditing the code. TextSecure is the only private messenger that uses open source peer-reviewed cryptographic protocols to keep your messages safe.
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Top
Con
Not available on tablets
TextSecure is currently not compatible with tablets. Support for tablets is promised in the future.
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Top
Pro
Passed EFF's security review
To pass EFF's security review TextSecure had to encrypt data in transit, the encryption had to be end-to-end, the app needed to provide forward secrecy, app's source code has to be open to independent review, users have to be able to verify contact's identities even with the service provider compromised, app's cryptographic design has to be well documented and app's source code has to have been audited in the last 12 months.
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File Camouflage
All
8
Experiences
Pros
5
Cons
3
Top
Con
Encourages improper use of steganography
To hide a file in an image you need two things: One, that the attacker cannot find the source image i.e. it has to be an image made by the user (preferably a photograph of a visually complex scene) and never put on the internet (using the pac_tron image would render the use of steganography moot, as the attacker can merely subtract a suspect image from a copy of the source image) and two, that the file to be hidden is smaller than the cover image. With the best techniques today you can embed a file about 10% of the size of the cover image. The example in the doc hides a file 21,500% of the size of the cover image. If you use steganography improperly you get no security, esp. as governments believe senior terrorists use steganography and thus search for it very, very, carefully.
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Top
Pro
Hides file in JPEG image
File Camouflage allows you to encrypt your sensitive information and then after hide it in the JPEG image of your choice. With this program an innocent family photo or photo of your pet can be used to disguise your most sensitive encrypted information.
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Top
Con
Frequently prompts you to donate
File Camouflage is free although the developer does proclaim it "donationware." As a result the program frequently and annoyingly begs that you donate.
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Top
Pro
Effective second level of protection
File Camouflage is an effective second level of protection. After encrypting and password protecting your sensitive information with AES, File Camouflage makes sure only your intended recipient knows there is even a file to decrypt by hiding it in a JPEG.
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Top
Con
Requires both sender and recipient to use File Camouflage
In order for the recipient to receive the intended information they have to download and use File Camouflage.
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Top
Pro
Easy to use
Hiding your sensitive information with File Camouflage is extremely easy. The whole process is explained very well even for an inexperienced user.
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Top
Pro
Free
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Top
Pro
Ability to send an EXE file via email
Many email providers are not able to send EXE files but File Camouflage not only protects it but allows the file to be sent.
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0
Chatlink.com
All
9
Experiences
Pros
8
Cons
1
Top
Pro
Even the website owners have no access to the data
Because the encryption keys are generated in client browser and never sent to the server.
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Top
Con
Currently no file transfer is available
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Top
Pro
All communiction is also encrypted with AES-256
All this encryption takes place at client side, so that even the server administrators have no access to the data.
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Top
Pro
No need to install anything
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Top
Pro
All communication is protected with TLS (SSL)
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Pro
No need to create an account
But creating an account can be useful, too: while having an account the key exchange can be done through public key cryptography.
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Top
Pro
You can delete messages any time
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Pro
Chatlink.com does not track or follow you in any way
It does not save any cookies or have any external links (like Google Adwords for example) that could track you.
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Pro
Chatlink.com is open source
The source code is available here. Being open source allows anyone to audit the code.
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Tox
All
4
Experiences
Pros
3
Cons
1
Top
Pro
Privacy focused
Tox uses military grade encryption and works completely peer-to-peer.
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Top
Con
Early stages of development
Since Tox is relatively new, it has important features missing (like group video) and requires a proper code review before it can be deemed reliable and ready for everyday use.
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Top
Pro
Free and open source
The code is licensed under GPL (may change in the future) and is available on GitHub.
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Top
Pro
Multiple front-ends for multiple platforms available
At the moment there is no official Tox client, but a selection of 32 and 64 clients for Windows, OS X, Linux and Android is available.
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178
28
Element (formerly Riot)
All
16
Experiences
Pros
15
Specs
Top
Pro
Bridges to other networks
You're not confined within Element's or even Matrix garden, and you don't have to make users of other networks switch to Matrix.
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Top
Pro
Markdown support
Code snippets in chats can be highlighted with Markdown.
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Top
Pro
Simple interface
Element has a very simple interface, adding the ability for more inexperienced users to use it.
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Top
Pro
VOIP and Videoconferencing
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Top
Pro
Supports encryption
Element allows for fully encrypted text, voice, and video chatting.
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Top
Pro
Widgets support
Want to watch that flick at YouTube and discuss it at the same time? Have Grafana graphs stacked above your DevOps team chat? Collaboratively edit Google Docs and chat over without switching applications? This is possible with Element.
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Top
Pro
Decentralized
An open network for secure, decentralized communication.
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Top
Pro
Self-hosting and federated network
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Top
Pro
Libre/open source
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Top
Pro
Search
Search messages in your current room, or all the rooms you're in. Not subject to a message history limit like Slack.
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Top
Pro
Cross platform
Web browser Linux OS X Windows Android iOS
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Top
Pro
Large existing community
With public rooms for many people, and you can create your own and let people from the community join.
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Top
Pro
Etherpad real-time document collaboration
An easy to activate integration that allows multiple authors to edit a document simultaneously.
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Top
Pro
File Sharing
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Top
Pro
Supports text, voice, video
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Specs
Platforms:
MacOS, Windows, Linux, Android, Browser, iOS
License:
Apache License 2.0
Publisher:
New Vector Ltd
End-to-end encryption:
Yes (optional)
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Experiences
Free
792
103
Sendinc
All
5
Experiences
Pros
4
Cons
1
Top
Pro
Sends emails securely
Sendinc allows you to securely send emails and attachments up to 10mb with 256-bit SSL encryption. The messages are then destroyed 7 days later by default.
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Top
Con
Recipient needs a Sendinc account
Sendinc will invite your recipient to create a Sendinc account but if they do not create an account they cannot view the email.
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Top
Pro
No password to share with recipient needed
Your recipient only needs the link sent not another password to share. Messages are decrypted with an encryption key only available in the link sent to the recipient after they sign into Sendinc.
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Top
Pro
Android and iOS app available
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Top
Pro
No download needed
Sendinc operates without any downloadable programs. This is beneficial because it allows you to send secure emails from any computer without needing to download the program again and leaving a trail of what downloadable program you used.
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Telegram
All
37
Experiences
Pros
28
Cons
8
Specs
Top
Pro
Free and convenient large file sharing
Copy/paste videos, gifs, images, geolocation, documents, and even executable files. Drag over files for practically any time up to 2GB in size. Images can be compressed, too.
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Top
Con
Not fully open source
Telegram has an open API and protocol free for everyone, but the backend software is not open source. Therefore 100% privacy can not be evaluated.
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Top
Pro
Free of cost
The application is available free of cost.
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Top
Con
Can only be used with a phone number
It is not possible to activate and use Telegram by mail etc. You need a phone number.
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Top
Pro
Privacy focused
In addition to the end-to-end encryption [only in secret chats] that provides privacy to communications, the app also includes self destructing timers for chats, and the ability to permanently delete messages, yours and theirs, from your and their devices.
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Top
Con
Only "Secret Chat" messages are encrypted end to end
The only way to get end-to-end encryption (client-client) using Telegram is to use the Secret Chat function, anything through the service is server-client encrypted. Also secret chat is only implemented in the mobile apps, meaning there is no way to encrypt messages end-to-end when using the desktop client or the web browser client.
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Top
Pro
Media messaging
Videos, gifs, images, geolocation, and documents.
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Top
Con
"Secret Chat" feature is not available for desktop client
Secret chats with end to end encryption are only available on mobile apps.
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Top
Pro
Channels for one way broadcasting
Broadcasting channels suitable for announcing things.
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Top
Con
No source code sintax highlighting
Telegram does not have source code syntax highlighting, making it difficult to share code snippets.
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Top
Pro
Beautiful UI
Very customizable with a lot of clean looking options.
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Top
Con
Does not work for visually impaired
Doesn't work for visually impaired.
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Top
Pro
Possible to send photos and videos without compression
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Top
Con
Does not support spherical 360° photos
Spherical 360° photos becoming more popular these days, but Telegram does not support such format.
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Top
Pro
Supergroups of up to 200,000 people
In Supergroups, anyone along with admins can delete their messages from all sides. A message can be pinned to the top. All of the user's messages can be deleted by an administrator, and they can be banned and reported as well. Supergroups can have a public link (outside of Asia, due to high spam volumes), which is also a username.
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Top
Con
Does not support text messaging
You can NOT make it your default text messaging App.
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Top
Pro
Two-step verification
You can set up an additional password to your account, which can be reset by your email. You don't have to use an email if you do not want to. If you lose access to your email or forget your password, you will be able to reset it via text message if your account is over seven days old and will receive it within a week (in case you recover anything before then).
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Top
Pro
Secure
Telegram uses an open source MTProto encryption protocol that provides complete end-to-end encryption for secret chats. To show off their confidence in the protocol the company behind Telegram has organized $200,000 and $300,000 challenges to break the encryption. So far there have been no winners.
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Top
Pro
Saved messages
You can write messages to yourself. You can write some notes, add links, and see everything across all your devices.
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Top
Pro
Cloud chat keys are kept in different jurisdiction
Even though encryption used for cloud-based storage (e.g. Gmail, Facebook, iCloud) may not be as secure as end-to-end encryption or zero-knowledge storage, Telegram does the most that it can by holding keys to chats in different jurisdictions, requiring intergovernmental cooperation to obtain the keys. This is aside from whatever other security measures have been taken, of course.
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Top
Pro
Multiplatform native client apps
There are native desktop, mobile and web client apps, that are optimized for speed and are light on memory usage.
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Top
Pro
Open source client apps
Client apps are open source, making whole service more trustworthy.
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Top
Pro
Unlimited storage
Unlimited number of files can be stored forever on the cloud. You can upload files up to 1.5 GB each.
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Top
Pro
Voice and video messages
You can post voice and video messages if you are too lazy to write text messages.
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Top
Pro
Group Voice Chat
This Discord-like feature adds to the interactivity of the application.
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Top
Pro
Pinned Messages
You can pin messages to the top of groups or supergroups so members will see them when opening the group.
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Top
Pro
Self-destruct messages
Messages in individual chats can be set to self destruct on a timer. They will disappear after the timer expires. Messages in all new chats can be set to self-destruct with a global auto-delete timer in Settings > Privacy and Security > Auto-Delete Messages.
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Top
Pro
Edit or delete messages after sending them
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Top
Pro
Banned in China
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Top
Pro
Save time with inline bots and link previews
Unfortunately, on the desktop videos don't play, but images are viewable without visiting popular websites like imgur and Instagram. You can play YouTube videos and others within the app, so you don't need to embed code or anything. With inline bots, such as @gif, @pic/bing, @vid/YouTube, etc, you can look things up without leaving the client or chat that you're in. Simply type the name and some keywords and wait for the results to load.
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Pro
@mentions
You can ping people to get their attention by @mentioning them.
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Top
Pro
Desktop app handles HiDPI
The desktop app has a built in setting to scale the UI of the app up to 200% which allows for those with 4k monitors/screens to use the app without scaling issues.
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Top
Pro
High quality calls
Uses the latest GPL audio codecs, such as Opus, an adaptative high-quality codec that supersedes AAC at any bitrate.
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Top
Pro
Customer support is within the app
Although it's volunteer based, but still pretty top-notch if available, which it tends to be.
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Top
Pro
Large groups can have channels called 'Topics'
Topics are now available in groups of 100+ members and have a sleek two-column layout and new buttons to quickly navigate. A default topic called General is now in every topic group, holding the group’s service messages and previous message history.
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Top
Pro
Popular in the USA
On SimilarWeb you can see that Telegram is on the top 15 among all communication apps.
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Specs
Platforms:
Web, Android, iOS, Windows, Linux, macOS, BSD, Windows phone, UWP
Publisher:
Various companies affiliated with Telegram
File Size:
2048 MB
End-to-end encryption:
Secret chats
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282
Signal
All
16
Experiences
Pros
10
Cons
5
Specs
Top
Pro
Provides security and privacy
Signal uses an advanced end to end encryption protocol that provides privacy for every message every time.
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Top
Con
Needs access to your phone number and contacts to work
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Top
Pro
Free and open source
Signal is free and open source software, enabling anyone to verify its security by auditing the code. It's the only private messenger that uses open source, peer-reviewed cryptographic protocols to keep your messages safe.
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Top
Con
Single device
Signal can only be registered to one mobile device at a time. But you can link Signal to Signal Desktop.
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Top
Pro
Supports encrypted group chats
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Top
Con
Servers hosted in the US
A security risk due to National Security letters, which require giving up data to the US state, and making it illegal to disclose that.
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Top
Pro
Has a desktop app
Signal Desktop can be used on multiple devices and has most features of the Android version, although it still requires you to register with your phone.
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Top
Con
Unreliable notifications
Sometimes messages won't be received if the Signal app has been closed for a long time or hasn't been opened after booting the device.
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Top
Pro
Supports sharing of various different media types
Signal supports: emoji, pictures, videos, audio, contacts, any location and GIF.
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Top
Con
Poor support
Their E-mail adress for support are not working. They have a Community support on here. Sometimes if you need a support, you need to create an account on their forum and need to share a topic and wait for long time.
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Top
Pro
Note to Self feature
Allows you to "send: messages to yourself and sync to desktop so you can use Signal as a kind of encrypted Pushbullet alternative
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Top
Pro
You can easily view all media exchanged
You can easily view all media shared in the chat without scrolling back to when it was shared.
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Top
Pro
Annonymous Sender (Encrypted)
The sender credentials can be encrypted with the rest of the message, leaving only the recipient address readable by the Signal server. Even if Signal wanted they couldn't see who is talking with who by this mean.
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Top
Pro
Works everywhere in every country
Unlike most messenger apps, Signal works reliably in all countries by securely circumventing internet censorship.
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Top
Pro
Recommended by Edward Snowden
Edward Snowden uses this messenger and recommends it to everyone who is concerned about his privacy.
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Specs
Platforms:
Android, iOS, Linux, Windows, Mac OS X
Publisher:
Open Whisper Systems
End-to-end encryption:
Yes
Media:
images / audio / video / files / contacts / GIFs / location
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Experiences
Free
687
181
Email a Data & Filename encrypted .7z file (7-Zip)
All
7
Experiences
Pros
3
Cons
4
Top
Pro
7-Zip is free and open-source
One of the best programs to encrypt .zip files is a free and open source program called 7-Zip. Although there are many other options out there such as WinZip, many cost money.
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Top
Con
Encrypted .zips are suspicious
It is rather suspicious for an encrypted zip file to be found in your email. If it is seriously important, people can find a way to coerce you to give over the password. A steganography technique is important if secrecy is of utmost important.
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Top
Pro
AES-256 encryption
7-Zip can encrypt files with extremely secure AES-256 encryption. AES is used by governments and businesses and is believed to be impossible to crack with today's technology at least. AES-256 has 1.1x10^77 combinations.
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Top
Con
Both the sender and recipient need an encryption program
Not only does the sender need an encryption program to encrypt the file, but the recipient needs an encryption program to open it. Windows provides a basic level of encryption natively without AES, but most users craving security will want to use a more advanced utility with AES such as 7-Zip. If the recipient is not good with computers this may be difficult.
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Top
Pro
Password protected
The encrypted file cannot be viewed without the same password inputted by the sender in the encryption process and the recipient in the decryption process. Although this password is another bit of sensitive information to transfer this may be a good solution if the sender and recipient can meet once for the password and then use password protected encrypted .7z files for future information transfers.
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Top
Con
The standard encyption method ZipCrypto is unsecure
Be sure to select AES encryption instead of the standard and much less secure ZipCrypto encryption. And use .7z files with Filename encryption, to prevent anyone from even viewing the contents and filenames, instead of .zip files, which can only encrypt Data.
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Top
Con
Zips are not made for this
Zips are there the compress and not to securely transmit
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11
Email an encrypted .EXE file (AxCrypt)
All
10
Experiences
Pros
5
Cons
5
Top
Pro
Free and open source
AxCrypt is free and open source. This is beneficial because anyone can examine the source code and check for errors.
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Top
Con
Windows-only
The receiver has to be running Microsoft Windows (or a binary compatible system, like Wine).
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Top
Pro
No recipient software needed if emailed as .EXE.TXT
After selecting "Encrypt copy to .EXE," rename the file to ".EXE.TXT" in order to bypass email provider restrictions on sending .EXE files. Windows will then warn you that the file will become unusable but ignore it and continue to email the file. All the recipient needs to do upon arrival is rename the file back to .EXE and ignore the Windows warning message. Then simply open the self extracting file and type in the agreed upon password between the sender and recipient. This is a great advantage of AxCrypt because it does not force your recipient to download any software.
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Top
Con
Opening an .EXE file may worry some recipients
Some recipients will be cautious of opening an .EXE and may end up ignoring it. It is a good idea to inform them in advance that you will be sending an .EXE and it is safe. Another precaution is to sign the email so the recipient knows that is you.
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Top
Pro
Available at right click
AxCrypt is an extremely convenient encryption program because it is always available at a single right click.
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Top
Con
Anti-virus will likely block it
Most anti-virus block or strongly warn again executable in emails. You'll likely have to rename the file and so will the end user.
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Top
Pro
Password protected and optional key-file
AxCrypt encrypts each file with a passphrase and an optional key-file. Transferring a key-file (that AxCrypt can generate for you) on a separate medium and the password on another medium to your recipient is the most secure option. Although a strong password alone will do. The only caveat is that the password and key file must be transferred to your recipient and the most secure way to transfer it is physically.
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Top
Con
Untrusted / not signed
Unless it's signed (i.e., you can somehow validate the signature of the attached EXE file via another method) the EXE may actually be compromized (e.g., man in the middle) and do anything on your machine as your run it.
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Top
Pro
Once created, does not depend on other software
As long as you have the password or keyfile to your encrypted file then you can still access it. This is beneficial if the software ever becomes unsupported.
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Con
AES-128 encryption
AES-128 encryption is still extremely secure but it is a lower and more outdated level of protection than what other encryption programs such as 7-Zip offer.
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5
Dropbox
All
28
Experiences
Pros
16
Cons
11
Specs
Top
Pro
Easy to use
You can use Dropbox via website, by installing a desktop client that creates a folder that you simply drag and drop files into, or with their mobile app. Everything synchronizes across all devices used and cloud storage. And Dropbox offers easy methods of sharing whatever is within it.
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Top
Con
Too little free space
There is just too little of free space available comparing to the competition.
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Top
Pro
Cross-platform desktop and mobile
Dropbox is available on iOS, Android, BlackBerry, Windows, OS X and Linux. By having a client for so many OS's pretty much anyone is covered no matter what kind of device or OS they are using.
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Top
Con
Not secure
They don't apply end-to-end encryption, files are visible to admins, governments, etc..
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Top
Pro
Allows sharing a folder
Using a desktop client: right click on the folder you want to share and select Dropbox > Share This Folder, then enter the e-mail addressees of people you want to share the folder with.
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Top
Con
No privacy
Extensive collecting and distribution of user data to commercial third parties.
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Top
Pro
Smart updates to big files
If a small portion of the file is changed it sends/receives only the differences (not the whole file), which is fast and bandwidth-efficient.
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Top
Con
Consumes a lot of CPU resources when syncing many files
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Top
Pro
Allows sharing a single file via link
Whether using desktop client or web interface, simply right click on the file you want to share and select Dropbox > Share link, then send the link to the people you want to share the file with. The recipient does not require a Dropbox account.
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Top
Con
All-or-nothing (non-selective) upload
Uploading generated contents (cache, compiled code, etc.) is prone to conflicts, wastes bandwidth and free space.
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Top
Pro
Up to 18GB of free storage space
Dropbox personal accounts start out free, with 2GB of space, but users can get extra space by recommending the site to friends, or taking part in events like "Dropquest", where users can win extra space by solving puzzles.
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Top
Con
Low bandwidth
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Top
Pro
Linux support
Dropbox offers native Linux support, integrates with Nautilus file manager.
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Top
Con
Dropbox keeps deleting features, chasing customers away
For instance, all photo albums got deleted. It used to be very easy to share a couple og photos, now it's PAINFUL and must be done file by file.
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Top
Pro
Reliable
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Top
Con
Nocive development model
Takes a lot of decisions that usually damage community, from deleting features to making impossible to use with other filesystems than ext4 because they decided without a plausible reason (they said it was about xattrs, but all modern linux filesystems supports xattrs, so it's bs.)(they remove this later, but it's too late).
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Top
Pro
Desktop client has no file size limit
As long as you have enough storage available, you can upload files of any size using Dropbox desktop client.
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Top
Con
Problems when synching between Linux and Windows devices (unconfirmed)
This summer I lost thousands of files due to this problem on older projects which subsequently needed revising and had to be rebuilt as tons of the source was gone.
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Top
Pro
Folders can be downloaded compressed to save bandwidth
To save bandwidth and download speed you can choose to compress a folder into a zip archive for download.
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Top
Con
Restricted only to 3 devices for FREE accounts
Recently dropbox decreased the number of linked devices to 3, so you can't have more than 3 linked devices. This is problematic if you use Dropbox to sync between your computers.
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Top
Pro
Adjustable bandwidth use
To not slow down the network or save traffic you can limit the upload and download speeds of Dropbox.
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Top
Con
Can unintentionally delete your files if you reinstall your OS without closing Dropbox
If you reinstall the operation system for your PC and you do not close Dropbox, it will delete all files.
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Top
Pro
Lots of addons and integrations
There are official and third-party Dropbox add-ons that extend the functionality of the service and add ease of use of existing features. Additionally, Dropbox can be integrated with existing applications to bring its functionality to other apps.
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Top
Pro
30-day version control
Dropbox keeps deleted and earlier versions of files for a month.
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Top
Pro
Instant disaster recovery
Your files always synced online means instant disaster recovery. When your hard drive becomes unbootable, pick up another laptop and just carry on with your life from where you last saved.
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Top
Pro
Available free storage can be increased with referrals
You get extra free space for you and your friend if they sign up.
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Top
Pro
Fast sync speed
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Specs
Platforms:
Windows, Linux, OSX, Android, iOS, Windows Phone
Offline access:
Yes
Versioning:
Yes
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