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531–540 of 6,439 articles
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Bleeping Computer
Cisco has fixed a critical Unified Communications and Webex Calling remote code execution vulnerability, tracked as CVE-2026-20045, that has been actively exploited as a zero-day in attacks. [...]
Graham Cluley
The UK's National Cyber Security Centre (NCSC) has issued a warning about the threat posed by distributed denial-of-service (DDoS) attacks from Russia-linked hacking groups who are reported to be continuing to target British organisations. Are you prepared? Read more in my article on the Hot for Security blog.
Dark Reading
Bleeping Computer
A malvertising campaign is using a fake ad-blocking Chrome and Edge extension named NexShield that intentionally crashes the browser in preparation for ClickFix attacks. [...]
Bleeping Computer
The U.K. government is warning of continued malicious activity from Russian-aligned hacktivist groups targeting critical infrastructure and local government organizations in the country in disruptive denial-of-service (DDoS) attacks. [...]
Bleeping Computer
Attackers are now exploiting a critical Fortinet FortiSIEM vulnerability with publicly available proof-of-concept exploit code. [...]
The Hacker News
A threat actor likely aligned with China has been observed targeting critical infrastructure sectors in North America since at least last year. Cisco Talos, which is tracking the activity under the name UAT-8837, assessed it to be a China-nexus advanced persistent threat (APT) actor with medium confidence based on tactical overlaps with other campaigns mounted by threat actors from the region.
The Hacker News
A critical misconfiguration in Amazon Web Services (AWS) CodeBuild could have allowed complete takeover of the cloud service provider's own GitHub repositories, including its AWS JavaScript SDK, putting every AWS environment at risk. The vulnerability has been codenamed CodeBreach by cloud security company Wiz. The issue was fixed by AWS in September 2025 following responsible disclosure on
Bleeping Computer
CISA has ordered government agencies to secure their systems against a high-severity Gogs vulnerability that was exploited in zero-day attacks. [...]
Dark Reading
A state-sponsored threat group tracked as "Kimsuky" sent QR-code-filled phishing emails to US and foreign government agencies, NGOs, and academic institutions.