Microsoft Threat Intelligence has detailed new phishing and malware delivery activity from Star Blizzard, a Russian state threat group. The group, also known as Callisto Group and SEABORGIUM, is associated with Centre 18 of Russia’s Federal Security Service, according to the US Cybersecurity and Infrastructure Security Agency (CISA).
Hacking & Cracking - Since January 2026, Microsoft has identified at least 13 large-scale phishing campaigns targeting organizations worldwide. The activity affec
