The Best Encrypted Messaging Apps You Should Use Today [Updated]

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Do you want to know which is the best encrypted messaging app out there and how they protect your valuable data? This guide might be exactly what you’re looking for.

We compiled a list of useful encrypted apps because the struggle for keeping our data secure is fiercer than ever. Governments crave for it, companies seek access to it, and cyber criminals probably want it the most.

Many of you could believe that all the confidential data shared is safe via Facebook Messenger, Skype or Snapchat, but sometimes it’s just an illusion. The recent events in which Facebook shared users’ private information with Cambridge Analytica in what seems to be one of the social network’s largest data breaches, should make us more aware of the importance of data privacy.


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Use this privacy and security guide to better secure your Facebook account.

Without end-to-end encryption, your conversations most likely will get into the hands of cyber criminals, and other malicious actors focused on stealing them.

To better understand how end-to-end encryption works, check out this infographic below:

Source: Chatmap.io

Why end-to-end encryption matters

In a nutshell:
End-to-end encryption means encrypting communications in order to make information unavailable to third parties. So when two or more devices communicate via an app that features this level of encryption, the information will be transmitted using a secret code rather than insecure plain text.

As a result, only the people communicating can read the messages and no other person. Not even Internet service providers, the app maker, the government or anyone else.

The data is protected against tampering, surveillance, cyber criminals while it’s transmitted and stored. The encryption key is stored locally, for improved protection.

Martin Kleppmann, former Rapportive co-founder, and LinkedIn engineer, sums up the value of end-to-end encryption in a great blogpost:

Although encryption in transit is widely used, it has serious security problems.

For example, the service provider could be hacked by an adversary, or compromised by an insider, causing sensitive information to be leaked. A fault in the service provider could cause data to be corrupted.

For these reasons, security experts are pushing towards widespread use of end-to-end encryption, which reduces the exposure to such attacks.

His comparison between different types of data encryption is also useful to explain the difference between the widely used encryption in transit and the more secure end-to-end encryption process:

end-to-end encryption comparison

Source: Martin Kleppmann’s personal blog

The most secure messaging apps

1. WhatsApp

whatsapp logoSince 2016, WhatsApp has enabled and implemented end-to-end encryption, so users can enjoy a more secure communication. With more than 1.5 billion users, the platform has been acquired by Facebook and offers a free app to small-to-medium sized and enterprise businesses alike.

Security-wise, encryption enhances communication privacy and protects users’ messages from impostors or malicious actors.  While security flaws may appear, if cyber criminals were to breach WhatsApp today, they couldn’t decrypt your conversations. That’s due to the encryption and to the fact that WhatsApp doesn’t store your messages on its servers.

App cost: FREE

2. Viber

viber logoWhen it launched its 6.0 version, Viber also rolled out end-to-end encryption, providing more safety for its users. The app maker even created a Viber Encryption Overview which serves as a great guide for those who want learn in-depth information on this security enhancement. Since 2017 its corporate name has been Rakuten Viber and is currently based in Luxembourg.

This private chat app has plenty of useful features in order to offer users high-quality calling experience and all of them are secured, so the information shared is protected along the way with the end-to-end encryption system.

As long as you make sure to use the sharing method pointed out by Viber, your data will remain encrypted from your end all the way up the recipient.

App cost: FREE

Users: More than 900 million registered users

3. LINE

LINE logoAnother secure texting app that you can use to  This app has quite an unusual story. It was originally built by a team of Japanese engineers as a solution to communicate after the devastating Tōhoku earthquake which happened in 2011. The calamity damaged the telecommunications infrastructure all over the country, so the only way to communicate was based on Internet-connected platforms.

The same year, LINE added end-to-end encryption to its platform. This featured is called “Letter Sealing” and it’s available to all its users. They just have to turn it on to benefit from it.

App cost: FREE

Users: over 700 million

4. Telegram

telegram logoIn their own words: “Telegram is a messaging app with a focus on speed and security.” The app has reached 200 million active users in March 2018 and continues to grow.

Similar to other messaging apps, Telegram offers end-to-end encryption as well, being considered one of the most secure messaging platforms. For users who want more privacy, they can turn on “Secret Chats” from the app’s advanced settings. Read more details about this feature:

“And when you delete messages on your side of the conversation, the app on the other side of the secret chat will be ordered to delete them as well.

You can order your messages, photos, videos and files to self-destruct in a set amount of time after they have been read or opened by the recipient. The message will then disappear from both your and your friend’s devices.”

All secret chats in Telegram are device-specific and are not part of the Telegram cloud, meaning that you can only access messages in a secret chat from their device of origin. If your device is safe, your secret chats are safe as well.

App cost: FREE

Users: Over 200 million active users

5. KakaoTalk

kakaotalk logoSimilar to other private chat apps listed above, KakaoTalk is a Korea-based messaging app that fully encrypts our conversations since 2014! To benefit from this feature, you have to use the “Secret Chat” feature, which is inspired by Telegram.

This feature offers users the option of securing messages with end-to-end encrypted chatting option. However, KakaoTalk’s default chat mode is not end-to-end encrypted, so you’ll have to enable it.

The app makers boast that KakaoTalk is used by over 90% of smartphone users in South Korea, for which privacy and data security are main concerns.

App cost: FREE

Users: Over 220 million registered

6. Signal – Private Messenger

signal messenger appHere’s another secure messaging app that uses encryption system and can keep your messages safe.

Whisper Systems created Signal as a successor to two separate apps dedicated to encrypted voice calling and encrypted texting.

Encryption was always at the core of the company’s products. When Twitter acquired it in 2011, the goal was to improve the security in the microblogging platform.

Its encryption engine is open source, which means is available for everyone to inspect.

Signal is used by leading figures in cyber security and data privacy, such as Edward Snowden and Bruce Schneier! That’s because in Signal all communication is encrypted end-to-end by default.

Recently, the app received a $50 million investment from the WhatsApp co-founder Brian Acton which is supporting the non-profit Signal Foundation’s mission of “making private communication accessible and ubiquitous”.

Signal is also WIRED’s secure messaging recommendation to use it because “it’s free, it works on every mobile platform, and the developers are committed to keeping it simple and fast by not mucking up the experience with ads, web-tracking, stickers, or animated poop emoji.”

App cost: FREE

It can be downloaded for free on Google Play or App Store.

7. Dust

cyber dust logoFormerly known as Cyber Dust, it’s another private messaging app that uses end-to-end encryption as the main security and privacy feature. You may think of Snapchat when you’ll read about its way of functioning, as it says on the website:

“You can erase your messages off other people’s phones. No messages are permanently stored on phones or servers. Messages are heavily encrypted and not accessible to anyone, even us.”

What Dust is trying to create is a social communication platform with enhanced security and privacy, by using a combination of AES 128 and RSA 248 encryption.

App cost: FREE for both Android and iOS platforms

8. Threema

threema logoHere’s another secure texting app that we suggest giving a try. Everything you communicate while using Threema is encrypted end-to-end: not only messages but also group chats, voice calls, media files and even status messages. Your messages can be read only the intended recipient, so nobody else can interfere and have access to them.

The app makers also boast that they delete the messages you send from their servers once they’ve been delivered.

Threema app has a “Private Chats” feature that can help users protect individual chats with a PIN code. This way, confidential chats are protected from malicious actors.

Another great thing about this app is the QR code and key fingerprint available for user verifications to prevent man-in-the-middle attacks.

App cost: 2,99 EUR

9. Wickr – Secure Messenger

wickr logoAnother chat app that offers end-to-end encryption was created in 2012 by a group of security experts and privacy advocates.

This app is open source and doesn’t require a phone number or email address to register. Built with privacy in mind, Wickr I does not collect data or have access to users’ data.

This page dedicated to the encryption standard used in Wickr is extremely useful for those who want to understand how end-to-end encryption works.

App cost: FREE for Android and iOS

 

10. Cyphr

cyphr logoCyphr is another encrypted messaging that is easy to use and free for both Android and iOS users.

The company’s Chief Technical Officer explains on the blog how Cyphr works in plain terms, so we recommend reading this section before you install the app.

Golden Frog, the company which makes Cyphr, also makes a VPN product, so they certainly know a bit about privacy and security.

Cyphr is a zero-knowledge messaging app, which means that your private messages cannot be read, shared or decrypted but third-parties.

Although it doesn’t have desktop or web apps yet, Cyphr is worth a try.

App cost: FREE

 

11. CoverMe

coverme logoCoverMe is another secure chat app that uses end-to-end encryption technology for better securing your messages and files sent from intruders who try to get access to them.

By using it, you can also make encrypted voice calls, without any records on your phone bill. The app also includes a private vault feature for extra security so you can use to store your files in and hide videos, photos, passwords and any files.

App cost: FREE

Download it from Google Play Store or Apple Store

12. Silence 

Is another messaging app that focuses on keeping your messages safe, using encryption for text messages over the air and on your phone.  Similar with Signal and Wickr Me apps, it is open source and free.

Formerly known as SMSecure, Silence app has a simple and friendly interface and uses encrypted SMS messages with no Internet connection required.

App cost: FREE

Download it from Google Play Store

13. Pryvate Now 

Whether you are an Android or iOS user, you can freely start chatting and messaging with Pryvate app.

In 2015 it won the award for “Best Business – Best Mobile App” and ensures your communications are encrypted and fully secured.

This messaging app offers world-class RSA 4096-bit encryption technology and involves NO servers or middleman for communications, so users can enjoy direct communications with their colleagues, friends or family.

It includes a “Self Destruct” feature which lets you delete all your messages sent on recipients device at any time.

App cost: FREE for Android and iOS

14. SureSpot

This small mobile messaging app uses end-to-end encryption technology for every text, image, and voice you are sending to one of your friends or colleagues, so no stranger can read it.

Surespot app doesn’t share any data about you and transfers your conversations securely to other devices. This guide can show how the app works and how can you protect all your mobile messages.

It worths knowing that it does not require or store your data.

App cost: FREE for Android and iOS

More to come

This list isn’t complete, so we believe we’ll update it soon.

If you have any encrypted messaging apps that should be on this list to add, do let us know, or leave a comment below, and we’ll be happy to include them.

Until then, just keep in mind that apps such as Kik, Google Hangouts, Facebook Messenger, Instagram, Snapchat, Twitter, and Skype are not encrypted end-to-end, so your conversations and files sent over these platforms can still be compromised.

If you want to explore more data encryption methods, we have a dedicated guide you’ll find helpful.

Conclusion

We’re living in a digital world where security and privacy matter more than ever. If you are concern about your data and value privacy, then it’s a must to use one of these encryption messaging apps to better secure them from spies, hackers or any other malicious actors.

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This article was initially written by Andra Zaharia in June 2016, and updated by Ioana Rijnetu in June 2018.

The post The Best Encrypted Messaging Apps You Should Use Today [Updated] appeared first on Heimdal Security Blog.

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