Users of the OpenSSL crypto library should upgrade immediately to the latest version to eliminate serious flaws that attackers could exploit to shut down servers, some security experts warn.
Criminals continue to target on-premises Microsoft Exchange servers that have not yet been updated with four critical patches, including for a ProxyLogon flaw, which is now being targeted by Black Kingdom ransomware. One expert describes the attack code as being "rudimentary and amateurish" but still a threat.
The Accellion File Transfer Appliance data breach continues to cause anguish. The energy company Shell has disclosed that it has been affected. Meanwhile, some customers of a Michigan-based bank have been informed that personally identifiable data has been exposed via the FTA breach.
Attackers are exploiting a critical remote code vulnerability in F5 Networks' BIG-IP server network traffic security management platform, for which the company released patches on March 10. The vulnerability is considered highly critical.
There has been a spike in web shells being detected as ransomware gangs and other attackers increasingly target vulnerable on-premises Microsoft Exchange servers following publication of proof-of-concept attack code for ProxyLogon, which is one of four zero-day flaws patched by Microsoft in early March.
A Swiss national who recently highlighted flaws in Verkada surveillance cameras has been charged with criminal hacking by a U.S. federal grand jury and accused of illegally accessing and leaking data from numerous organizations, apparently including Intel, Nissan and the U.S. National Reconnaissance Office.
From Thursday through Monday, Check Point Research tracked a tenfold increase in the number of global attempts to exploit vulnerable on-premises Microsoft Exchange servers as organizations race to install patches.
Fresh ransomware targeting an unpatched Microsoft Exchange email server flaw appears to have been rushed to market by criminals trying to capitalize on new opportunities before the competition stepped in, resulting in relatively shoddy attack code, security firm Sophos reports.
Microsoft has released an interim mitigation tool designed to help smaller organizations take quick action to prevent attacks that exploit the unpatched ProxyLogon flaw in on-premises Microsoft Exchange servers.
Attackers wielding DearCry - aka DoejoCrypt - ransomware have begun to exploit the serious proxy-logon flaw in unpatched versions of Microsoft Exchange running on premises. The vulnerability is one of four zero-day flaws patched last week by Microsoft, which APT attackers began exploiting in January.
The Microsoft Vulnerabilities Report compiles every Microsoft security bulletin from the past 12 months, analyzes the trends, and includes viewpoints from security experts. This provides a consolidated view and analysis of Microsoft patch Tuesdays, providing a crucial barometer of the threat landscape for the...
Serious vulnerabilities in Microsoft Exchange have been exploited by at least 10 APT groups that have been collectively been hitting thousands of companies over the last three months, including prior to when Microsoft was first alerted to the flaws and issued a patch, security researchers warn.
Computer security researchers have acquired an enormous list of compromised email servers from the perpetrators of the mass Microsoft Exchange compromises. But a big question looms: How bad is this situation going to get?
Microsoft's rerelease on Patch Tuesday of the seven patches for the widely exploited Exchange vulnerabilities has given security experts a chance to reiterate the urgent need to install these and other critical security updates.
Microsoft is warning users of its Azure cloud platform that hackers are using several "living off the land" attack techniques to evade security measures, escalate privileges and deploy cryptominers. The software giant released a threat detection and mitigation strategy for the platform.
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