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

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.

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,

A hacking group linked to Russia’s government tried stealing WhatsApp data of employees at non-governmental organizations offering assistance to Ukraine, according to Microsoft Corp.