Russian hacker group Star Blizzard intensifies phishing attacks since early 2026

Russian hacker group Star Blizzard, linked by U.S. agency CISA to the Federal Security Service, has escalated phishing campaigns since early 2026 and deployed a new method for delivering malware. According to Microsoft, the group's activities have affected over 100 organizations, primarily in the U.S. and United Kingdom. The hackers changed tactics to more effectively bypass existing security measures.

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