The North Korea-aligned state-sponsored hacking group known as ScarCruft has compromised a video game platform in a supply chain espionage attack, trojanizing its components with a backdoor called BirdCall to likely target ethnic Koreans residing in China. While prior versions of the backdoor have primarily targeted Windows users only, the supply chain attack is assessed to have enabled the threat actors to also target Android devices, essentially turning it into a multi-platform threat. According to ESET, the campaign has singled out sqgame[.]net, a gaming platform used by ethnic Koreans living in the Yanbian region in China bordering North Korea and Russia. It's also known to act as a primary, high-risk transit point for North Korean defectors crossing the Tumen River. Filip Jurčacko,…