Enlarge (credit: Getty Images) Microsoft has released a fix for a harebrained Exchange Server bug that shut down on-premises mail delivery around the world just as clocks were chiming in the new year. The mass disruption stemmed from a date check failure in Exchange Server 2016 and 2019 that made it impossible for servers to […]
(credit: Aurich Lawson / Ars Technica) Microsoft Exchange servers compromised in a first round of attacks are getting infected for a second time by a ransomware gang that is trying to profit from a rash of exploits that caught organizations around the world flat-footed. The ransomware—known as Black Kingdom, DEMON, and DemonWare—is demanding $10,000 for […]
Enlarge (credit: Getty Images) Tens of thousands of US-based organizations are running Microsoft Exchange servers that have been backdoored by threat actors who are stealing administrator passwords and exploiting critical vulnerabilities in the email and calendaring application, it was widely reported. Microsoft issued emergency patches on Tuesday, but they do nothing to disinfect systems that […]
Enlarge (credit: Getty Images) Microsoft is urging customers to install emergency patches as soon as possible to protect against highly skilled hackers who are actively exploiting four zeroday vulnerabilities in Exchange Server. The software maker said hackers working on behalf of the Chinese government have been using the previously unknown exploits to hack on-premises Exchange […]