Microsoft was warned months ago — now, the Hafnium hack has grown to gigantic proportions

Microsoft was warned months ago — now, the Hafnium hack has grown to gigantic proportions


Illustration by Alex Castro / The Verge

On Friday, cybersecurity journalists Brian Krebs and Andy Greenberg reported that as many as 30,000 organizations had been compromised in an unprecedented email server hack, believed to have originated from a state-sponsored Chinese hacking group known as Hafnium.

Over the weekend, that estimate has doubled to 60,000 Microsoft Exchange Server customers hacked around the world, with the European Banking Authority now admitting that it’s one of the victims — and it looks like Microsoft may have taken a little too long to realize the severity and patch it. Krebs has now put together a basic timeline of the massive Exchange Server hack, and he says Microsoft has confirmed it was made aware of the vulnerabilities in early January.

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