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Source: Microsoft, Bleeping Computer Ransomware-wielding attackers have begun to exploit a serious proxy-logon flaw in unpatched versions of Microsoft Exchange running on premises, Microsoft reports. Hackers have exploited the flaw to access vulnerable servers, crypto-lock files and demand a ransom from victims in return for the promise of a decryption tool. News of the attack campaign follows Microsoft on March 2 issuing emergency patches to fix four zero-day flaws in Microsoft Exchange, which is one of the most widely used pieces of IT infrastructure in the world. "Because we are aware of a...

Ransom-seeking hackers are taking advantage of Microsoft flaw: expert

European markets are again mixed (aren't they always!) with the FTSE up 0.3% but the Dax down 0.6% and EuroStoxx down 0.2%. US futures are weaker with the Nasdaq leading the way lower, down 1.3%, S&P down 0.5%, and the Dow down 0.1%. S&P 500 Top News US PPI comes in pretty much in line 2.8% year on year, 0.5% month on month.  President Biden signs the US stimulus bill earlier than expected. UBS Global Wealth Management sees further equity market appreciation, according to Chief Investment Officer. Ned Davis Research says a US 10 Year rate of 2% could wipe 20% of the Nasdaq. President Biden d...

By Ionut Arghire on March 12, 2021 In addition to state-sponsored threat actors, the recently disclosed vulnerabilities affecting Microsoft Exchange Server are now being targeted by ransomware operators. A total of four critical zero-day vulnerabilities that are collectively referred to as ProxyLogon were patched in Exchange Server at the beginning of this month, and activity surrounding the bugs has only intensified since. This week, ESET revealed that it has identified at least 10 threat actors that are attempting to exploit these vulnerabilities in their attacks, including Calypso, LuckyM...

 12 Mar 2021 - 13:33 Reuters WASHINGTON - Ransom-seeking hackers have begun taking advantage of a recently disclosed flaw in Microsoft's widely used mail server software, a researcher said late Wednesday - a serious escalation that could portend widespread digital disruption. The disclosure, made on Twitter by Microsoft Corp security program manager Phillip Misner, is the realization of worries that have been coursing through the security community for days. Since March 2, when Microsoft announced the discovery of serious vulnerabilities in its Exchange software, experts have warned that i...