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You need to trust that their code works correctly. You must believe that a rogue employee won't read your messages. The problem with these apps it that they require you to trust the company offering the service. You exchange one master for another master. However, your texts will still be stored in some tech company's server. Random people will not be able to read your messages. As a result, you have the benefit of encryption through TLS. Instead of your messages traveling through cell towers, it goes through TCP/IP. It's a step up from SMS, but not by much.

Thus, we put them all in the same bucket. These apps may have different features, but they're identical from a security perspective.

Primitive compared to other alternativesĪs social media and smartphones gained traction, many apps began to support messaging.

I'd recommend using alternatives to SMS whenever possible. The same idea applies to the cell carriers. Anybody who intercepts your message knows what you're sending. If you have a phone, you can probably use SMS, which makes is a very common option. Before smartphones, we could send still send texts, albeit in a more primitive manner. SMS is the original text messaging protocol. Skip to the end if you want my overall recommendations. If you're too lazy to read the details, here's a chart with the general verdict. We'll examine the following messaging options: Not all messaging apps are built the same, but fortunately some are quite similar. The average consumer has a boatload of choices when messaging others.

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For software that isn't open source, you need to trust that it does what it claims to do. The public can audit whether the server has any security issues and whether it works as intended. This is especially relevant for software running on remote servers. Software that's open sourced means that the public can view the source code for the software. Therefore, nobody needs to trust a third party service. When any message reaches a server, the server only sees the encrypted blob.

You and your recipient exchange encryption keys beforehand.

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Although TLS can prevent random parties from reading your message, the server can have full control over your message.Įnd-to-end encryption (E2EE) handles that problem. The server routes the messages to your recipient. End-to-end Encryptionįor most types of messaging, you send a message to a server. As a result, random people on your network cannot see what you write. The Transport Layer Security (TLS) protocol encrypts most data you send to websites. In practice, most data that travels over the Internet is encrypted. The recipient with the proper credentials can decrypt the blob back into the original message. The original plaintext message turns into an opaque blob of data. When you encrypt a message, only the intended recipient can read the message. I'm explaining these in plain English, so everybody can understand. If you're an engineer, forgive the lack of rigor. They're necessary to understand how different messaging apps work. Let's define some terms so we're on the same page. You can come to your own conclusions afterwards. Below, we compare many popular messaging options and their implications on your privacy. Regardless of your personal choices, I believe it's important to be an informed user. Messaging apps are a staple of every day life. It wasn't the easiest thing to do, but it gave me the power to communicate with greater peace of mind. Recently I choose to bite the bullet and move off of Facebook Messenger. Either surrender your privacy or be isolated from your friends. It was like being stuck between a rock and a hard place. Yet, it seemed that everyone was using Messenger. There was always a feeling of unease knowing that Zuck could look at my private messages. I've always had a love/hate relationship with Facebook Messenger.