phishing

A joint FBI-CISA advisory says Russian-linked actors have compromised thousands of Signal and WhatsApp accounts belonging to government officials, military personnel, and journalists across multiple countries.

A coordinated operation led by Europol, Microsoft, and law enforcement agencies across six countries seized 330 domains powering the Tycoon 2FA phishing-as-a-service platform, which had accounted for 62 percent of all phishing attempts Microsoft blocked by mid-2025.