DEVCOR

March 8, 2021

A Basic Timeline of the Exchange Mass-Hack

This post was originally published on this siteSometimes when a complex story takes us by surprise or knocks us back on our heels, it pays to revisit the events in a somewhat linear fashion. Here’s a brief timeline of what we know leading up to last week’s mass-hack, when hundreds of thousands of Microsoft Exchange Server systems got compromised and seeded with a powerful backdoor Trojan horse program. When did Microsoft find out about attacks on previously unknown vulnerabilities in Exchange? Pressed for a date when it first became aware of the problem, Microsoft told KrebsOnSecurity it was initially notified […]