Blackcat ransomware gang behind attack on UnitedHealth unit

The 'Blackcat' ransomware gang is reportedly behind a six-day outage at UnitedHealth Groip Inc.'s technology unit, Change Healthcare, disrupting prescription deliveries across the United States, Reuters reports. The cybercriminal group, notorious for encrypting data to demand large payouts, previously targeted major businesses like MGM Resorts International and Caesars Entertainment.