Social network X is blocking links to shared contact details on encrypted messaging app Signal. Links to signal.me are blocked even in direct messages …

The issue was first spotted by security researchers at Mysk, with Disruptionist’s Matt Binder able to confirm the methods being used.

X, formerly Twitter, is blocking users from posting a “Signal.me” link through DM, public post, or even in their profile page. When trying to post a Signal link, users receive a variety of different “message failed” prompts depending on what version of the X platform they use (i.e. X for web, X for iPhone, etc.)

Error messages include claiming the link is “potentially harmful,” might be spam, or even “is considered malware.”

Other Signal links are not blocked – only the signal.me domain which is used specifically to invite someone to send you an encrypted message.

The site notes that Signal is commonly used by journalists, including acting as a safe communications channel for whistleblowers. It suggests the move is likely a deliberate one by X owner Elon Musk.

Signal has been an important tool for journalists over the years as really one of the few services that are truly private. All messages are end-to-end encrypted, everything is stored on device, and no content is kept on any Signal servers in the cloud. If a source wants to reach out to a reporter and be sure their communication would be as confidential as possible, Signal is usually one of the primary methods of choice.

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