Microsoft observed Star Blizzard engaging in spear-phishing attackThe group is going after WhatsApp accounts of diplomats and government workers engaged in the Ukraine-Russia warThe phishing attack uses QR codes A Russian state-sponsored threat actor has been spotted engaging in a unique cyber-campaign aimed at supporting the country’s war effort against Ukraine.

Microsoft Threat Intelligence observed the Russian threat actor we track as Star Blizzard sending their typical targets spear-phishing messages, this time offering the supposed opportunity to join a WhatsApp group.

Microsoft spots the Russia-based 'Callisto' hacking group exploiting the QR code device-linking feature from WhatsApp to gain access to user accounts.

The Russian hacker group Star Blizzard launched a spear phishing campaign in November via the messaging platform WhatsApp, marking a change in longstanding tactics, Microsoft reported in a blog post on Jan.

FSB cyberspies venture into a new app for espionage, Microsoft says Star Blizzard, a prolific phishing crew backed by the Russian Federal Security Service (FSB), conducted a new campaign aiming to compromise WhatsApp accounts and gain access to their messages and data,