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Security updates fix software weaknesses, reduce exploitable risk, and may address vulnerabilities affecting systems, applications, and devices.

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Security updates are vendor-released patches, fixes, or configuration changes that address vulnerabilities and other weaknesses in operating systems, applications, libraries, firmware, cloud services, and network equipment. They may correct exploitable code, tighten security controls, or provide mitigations when a complete fix is not yet available.

For security practitioners, update news informs vulnerability management: assess whether affected assets are deployed, determine exposure and exploitability, prioritize urgent fixes, and verify installation. Applying updates can reduce attack paths such as remote code execution or privilege escalation, but rushed changes can disrupt services, so testing, staged deployment, rollback plans, and compensating controls may be needed. Advisories can also reveal required configuration changes, affected dependencies, or unsupported versions that need replacement.

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But can you really take crims at their word? Supply chain integration vendor Cleo has urged its customers to upgrade three of its products after an October security update was circumvented, leading to widespread ransomware attacks that Russia-linked gang Cl0p has claimed are its evil work.…

Also, new EU cyber reporting rules are live, exploiters hit the gas pedal, free PDNS for UK schools, and more in brief A critical security update for the near-ubiquitous WordPress plugin Jetpack was released last week. Site administrators should ensure the latest version is installed to keep their sites secure. …

ALSO: Viasat hack wiper malware is back, users are the number one cause of data loss, and critical vulns Infosec in brief If your Windows domain controllers have been crashing since a security update was installed earlier this month, there's no longer any need to speculate why: Microsoft has admitted it introduced a memory leak in its March patches and fixed the issue.…