What is end-to-end encryption?

Privacy matters.
 By 
Christianna Silva
 on 
Two sets of hands on a laptop screen.
End-to-end encryption is one way to keep your messages private. Credit: Mashable / Vicky Leta

One easy way to up your privacy game and communicate securely online is to start using apps that utilize end-to-end encryption. End-to-end encryption prevents any bad actors from picking up your messages in between you and the person you're sending a message to. Basically, end-to-end encryption means that your messages are for your eyes and the eyes of your recipient only.

End-to-end encryption used to be for the tech savvy and elite only — but more recently, tons of apps and platforms have made end-to-end encryption available to the masses. 

What is end-to-end encryption and how does it work?

End-to-end encryption means no one — not hackers, not government officials, not the company that owns your device — can read your message while it's being sent. It basically takes your message, jumbles it up, sends it, and unjumbles it once it reaches your recipient. So anyone who tries to intercept your message in between you and your recipient just gets a bunch of mess instead of the message itself. This is important because messages can pass through loads of hands on their way from sender to recipient, such as the service you use to send the message, the internet service providers involved, and servers that store the message data for any amount of time.


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Does it protect you against everything?

Nope! End-to-end encryption protects your privacy against anything trying to mess with your messages in between you and your recipient, but it won't protect you against everything. It protects you from information inside a message, but doesn't protect metadata about the message, like the date and time it was sent or who sent it and received it. It also doesn't protect you from the recipient of your message sharing whatever information you send them.

If I'm not sending secret messages, does it really matter?

Whether or not you use apps with end-to-end encryption is ultimately up to your personal taste. Some people like using end-to-end encryption for all of their messaging because they prioritize privacy, and it's often free and just as easy to use as other apps that offer fewer privacy-focused features. Overall, end-to-end encryption is just one way you can use your right to privacy.

Which apps use end-to-end encryption?

If you want to jump into the fray of end-to-end encryption, there couldn't be an easier time than now. Some apps cost money and some are free, and they all offer different features, so pick one that feels right for you.

Topics Privacy

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Christianna Silva
Senior Culture Reporter

Christianna Silva is a senior culture reporter covering social platforms and the creator economy, with a focus on the intersection of social media, politics, and the economic systems that govern us. Since joining Mashable in 2021, they have reported extensively on meme creators, content moderation, and the nature of online creation under capitalism.

Before joining Mashable, they worked as an editor at NPR and MTV News, a reporter at Teen Vogue and VICE News, and as a stablehand at a mini-horse farm. You can follow her on Bluesky @christiannaj.bsky.social and Instagram @christianna_j.

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