X now blocks Signal contact links, flags them as malicious

X (formerly Twitter) is blocking posts, DMs, and bios that include Signal.me contact links, labeling them as potential spam or malware, while other Signal URLs (e.g., signal.org, signal.link, signal.group) are unaffected and existing Signal.me links show a warning before access. The timing and rationale remain unclear—researchers liken the move to previous blocks of competing platforms—with speculation about political motives; X has not commented, and Signal has been contacted for clarification.