Elon Musk is targeting federal employees and organizations through the Department of Government Efficiency (DOGE). Now, Musk’s X (formerly Twitter) is blocking links to Signal.me, a URL used by the encrypted messaging service Signal that allows users to contact others directly, as reported by the blog Disruptionist. Federal workers have utilized Signal to discreetly report relevant and hazardous activities.

When attempting to post a Signal.me link in a direct message, public post, or on their profile page, users receive error messages such as, “This request appears to be automated. To safeguard our users from spam and other malicious activity, we cannot complete this action at this time. Please try again later.” Other responses include, “We cannot complete this request because this link has been identified by X or our partners as potentially harmful.” Engadget has verified the block through testing.

Users who try to click on existing Signal.me links are presented with a warning message stating, “Warning: this link may be unsafe. The link you are attempting to access has been identified by X or our partners as being potentially spammy or unsafe, in accordance with X’s URL Policy.” They have the option to ignore the warning and proceed to the link.

Musk is collaborating with President Trump to reduce the number of federal workers across the board. Over 9,500 employees were fired on Friday, February 14, alone, as reported by Reuters.