Top 5 Cybersecurity News

By Editorial Team | October 2, 2026
Top 5 Cybersecurity News October 2, 2026: Cisco SD-WAN zero-day, WSO2 CVSS 10 auth bypass, Citrix backdoors persist, Apple CoreGraphics exploit, GUTcert breach.

This week’s Top 5 Cybersecurity News for October 2, 2026 follows a pattern that has been building across the year: attackers are targeting the layers that other infrastructure trusts. A critical-severity zero-day in Cisco’s SD-WAN Manager — the console that programs an entire enterprise WAN — arrived in CISA’s Known Exploited Vulnerabilities catalog on September…

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GUTcert critical infrastructure data breach

By Editorial Team | October 2, 2026
A breach at certifier GUTcert exposed German critical infrastructure data; energy utility ENTEGA confirms it is a downstream victim.

A GUTcert critical infrastructure data breach has exposed roughly 640 GB of documentation submitted by German energy-grid operators as certification evidence, including exact substation locations and network topology maps. On September 24, Darmstadt utility ENTEGA AG confirmed it is a downstream victim, and more operators are expected to come forward. What Happened GUTcert is a…

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