Elon Musk's X Rolls Out XChat but Security Experts Raise Red Flags - Know More

On June 9, 2025, X(formerly Twitter) rolled out its much-anticipated encrypted direct messaging feature – XChat, promising users private conversations shielded from prying eyes. However, cryptography experts are already pointing out serious concerns that could expose users.

Matthew Green, a respected cryptographer and Johns Hopkins University professor, published a detailed critique of the new system. He highlights that the platform’s encryption relies on a closed-source protocol, meaning independent researchers can’t verify its security. Unlike Signal or WhatsApp, which use well-documented and widely reviewed protocols, X’s approach keeps key technical details under wraps.

Other recent Twitter/X news –

• Grok 3’s DeepSearch scans X (formerly Twitter)’s feed to give you an AI answer
• The Guardian joins companies’ massive exodus from X, formerly known as Twitter
• Microsoft India’s X (formerly Twitter)’s account falls for crypto scams

Green’s analysis also notes that X’s system stores users’ encrypted messages and cryptographic keys on its own servers. This setup could give the company access to both the messages and the keys, potentially allowing it – or anyone who gains access to X’s infrastructure – to read supposedly private conversations. In contrast, established apps like Signal ensure only the sender and recipient can decrypt messages, even if the servers are compromised.

Another issue is that X’s encrypted DMs are opt-in and only available to paid subscribers. This limits the feature’s reach and leaves most users without the extra privacy. Even for those who pay, the system doesn’t support group chats or attachments, making it less versatile than competing services.

Security researchers urge caution. While X’s move signals an interest in privacy, the lack of transparency and technical limitations mean users shouldn’t assume their messages are fully protected. For now, experts recommend sticking with established, open-source messaging apps for conversations that require real confidentiality.

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