Ransomware goes postal: US healthcare firms receive fake extortion letters
CSO Online reports: In late February, healthcare organizations across the US started receiving extortion demands by mail claiming that their organization’s data had been stolen in a ransomware attack and giving them 10 days to respond. According to the letters, printed on paper and delivered in envelopes purporting to be from the BianLian ransomware group, […]

China-linked APT Silk Typhoon targets IT Supply Chain
Microsoft warns that China-backed APT Silk Typhoon, which was linked to the US Treasury hack, is now targeting global IT supply chains, using IT firms to spy and move laterally. Security Affairs reports: Microsoft reported that China-linked APT group Silk Typhoon has shifted tactics to target IT solutions like remote management tools and cloud apps […]