Facebook Messenger conversations are not end-to-end encrypted by default, meaning that in theory, someone with malicious intent could access sensitive information from your chats. It also implies that Facebook and anyone with access to their data can freely view your messages.

If you value privacy (and question why you're using Facebook, which is essentially the opposite of private), you might want to activate end-to-end encryption for your Messenger chats. This feature ensures that no one—not even Facebook—can read the contents of your messages.

Interestingly, Facebook doesn't offer a universal setting for end-to-end encryption across all messages, which likely reflects their reluctance to lose the ability to monitor user communications. Therefore, you must enable encryption individually for each conversation.

How to Turn On End-to-End Encryption in Facebook Messenger on iPhone

1. If you haven’t already, launch the Messenger app, then select the chat you wish to secure
2. Inside the message thread, tap the person's profile at the top of the screen
3. Scroll down and choose “Go to secret conversation” under More actions
4. Tap back, and repeat this process for any other conversations you'd like to encrypt

Once activated for a specific Messenger chat, end-to-end encryption gives you more assurance that no one will be secretly reading your messages. Still, it’s important to remember it’s still Facebook—a platform where your personal data is the product being sold—so how much you trust them as a secure communication tool is ultimately your decision.

For truly secure messaging that’s always encrypted and less vulnerable to surveillance, you may want to try Signal. It comes with end-to-end encryption by default and includes additional features like self-destructing messages. Since Signal's business model centers around security, privacy, and encryption, it makes more sense to trust an app like this compared to Meta/Facebook, whose main goal is collecting and monetizing your personal details.

Make sure to explore more Facebook Messenger tips if this interests you!

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