Here's what we know so far about the massive Microsoft Exchange hack
CNN
A large, Chinese-linked hack of Microsoft's Exchange email service continues to spread alarm, a week after the attack was first reported.
The breach is believed to have targeted hundreds of thousands of Exchange users around the world. Microsoft (MSFT) said four vulnerabilities in its software allowed hackers to access servers for the popular email and calendar service, and the company urged customers to immediately update their on-premises systems with software fixes. Even the White House quickly got involved, and now multiple US government agencies also are investigating the attack.More Related News
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