Organisations using on-premises versions of Microsoft Exchange Server are at risk of targeted attacks exploiting three newly-disclosed zero-day exploits, which are already being taken advantage of by ...

Microsoft has released updates to address four previously unknown or 'zero-day' vulnerabilities in Exchange Server that were being used in limited targeted attacks, according to Microsoft. Microsoft ...

Microsoft is warning customers that a new China state-sponsored threat actor is exploiting four previously undisclosed security flaws in Exchange Server, an enterprise email product built by the ...

Microsoft has released patches for four critical vulnerabilities being used to target on-premises versions of Microsoft Exchange Server in "limited and targeted" attacks. It attributes the activity to ...

Volexity has seen active in-the-wild exploitation of multiple Microsoft Exchange vulnerabilities used to steal email and compromise networks, and the attacks appear to have begun as early as Jan. 6.

Public proof-of-concept (PoC) exploits for ProxyLogon could be fanning a feeding frenzy of attacks even as patching makes progress. As dangerous attacks accelerate against Microsoft Exchange Servers ...

Microsoft has disclosed evidence that "Hafnium," a new Chinese hacking group, has been targeting US servers running Microsoft's email system. Following the 2020 US Treasury Department hack which ...

Hackers in China, Iran, North Korea, and Turkey are capitalizing on the Log4j flaw, with Iran’s Phosphorus group modifying the exploit and China’s Hafnium group hitting virtualization infrastructure, ...

Microsoft Corp. today released software updates to plug four security holes that attackers have been using to plunder email communications at companies that use its Exchange Server products. The ...