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Also: IoTex Bridge Exploit Linked to Private Key BreachThis week, Step Finance shuts down, IoTeX bridge exploit, Russia-linked exchanges help evade sanctions, Australian charged in $3.5 million scam, a hacker returned $21 million in seized bitcoin to South Korean prosecutors and Malaysia arrested 12 police officers in an extortion case.
Costa Rica’s national health service was hacked sometime earlier this morning by a Russian ransomware group known as Hive. The intrusion comes just weeks after Costa Rican President Rodrigo Chaves declared a state of emergency in response to a data ransom attack from a different Russian ransomware gang — Conti. Ransomware experts say there is good reason to believe the same cybercriminals are behind both attacks, and that Hive has been helping Conti rebrand and evade international sanctions targeting extortion payouts to cybercriminals operating in Russia.
Attackers are sending email blasts with malware links in embedded PDFs as a way to evade email filters, lying about having fictional "video evidence."