A sophisticated attack on Microsoft Corp.’s widely used business email software is morphing into a global cybersecurity crisis, as hackers race to infect as many victims as possible before companies can secure their computer systems.
The attack, which Microsoft has said started with a Chinese government-backed hacking group, has so far claimed at least 60,000 known victims globally, according a former senior U.S. official with knowledge of the investigation. Many of them appear to be small or medium-size businesses caught in a wide net the attackers cast as Microsoft worked to shut down the hack.
Victims identified so far include banks and electricity providers, as well as senior citizen homes and an ice cream company, according to Huntress, a Ellicott City, Maryland-based firm that monitors the security of customers, in a blog post Friday.
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