The National Security Agency issued a warning about vulnerabilities in the Signal app on Feb. 25, indicating it can be penetrated by Russian operatives for spying. High-ranking officials unintentionally leaked plans regarding an attack on Yemen’s Houthis during a Signal group chat that included a U.S. journalist.
The NSA memo states that individuals involved in intelligence and military operations should be cautious when using apps like Signal for sensitive discussions.
A Pentagon memo followed, advising against using Signal for unclassified information due to monitoring by Russian hacking groups.
