https://www.bleepingcomputer.com/news/security/ukrainian-military-targeted-in-new-signal-spear-phishing-attacks/

Ukraine's Computer Emergency Response Team (CERT-UA) is warning about highly targeted attacks employing compromised Signal accounts to send malware to employees of defense industry firms and members of the country's army forces.

The bulletin mentions that the attacks started this month, with Signal messages containing archives posing as meeting reports.