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Anthropic says Mythos 5.2 improves vulnerability discovery while showing a lower tendency to escape sandboxes in controlled tests.

Attackers could exploit the flaws for remote code execution, credential theft, and administrator account creation.

CISA has added CVE-2026-123218 and CVE-2026-116779 to KEV, urging federal agencies to patch them within three days.

France summoned the Iranian ambassador and said it would seek European sanctions against those responsible for the attack

The high-severity use-after-free in Chrome’s XML component was reported anonymously on November 6 and is already exploited in attacks.

Online fashion retailer Revolve has told regulators that the September cyberattack affected more than 1.5 million individuals.

Threat actors are exploiting the four-flaw chain to hack the Plex Media Server application on QNAP NAS devices.

Hackers compromised an external cloud service used by the shopping platform and may have stolen personal information from it.

Italian Foreign Minister Antonio Tajani said Saturday that his personal data had been disseminated on the dark web.

The initial exploitation attempts are attributed to botnets and crypto miners, but other threat actors are expected to follow suit.

Hackers stole personal, health, and insurance information, including Social Security numbers, from the company’s internal systems.

Frontline Education told Indiana regulators that its August data breach affected over 3 million school district staff and students.

Working with cryptographers, DeepMind’s AI agents cut the cost of forging RSA-1024 signatures and found a cheaper way to factor keys.

CISA KEV CISA KEV

CISA has added CVE-2026-123218 and CVE-2026-116779 to KEV, urging federal agencies to patch them within three days.

Chrome security Chrome security

The high-severity use-after-free in Chrome’s XML component was reported anonymously on November 6 and is already exploited in attacks.

SSH vulnerability SSH vulnerability

The initial exploitation attempts are attributed to botnets and crypto miners, but other threat actors are expected to follow suit.

Top Cybersecurity Headlines

Working with cryptographers, DeepMind’s AI agents cut the cost of forging RSA-1024 signatures and found a cheaper way to factor keys.

CVE-2026-19868 can let attackers holding credentials for a different login method get past SAML checks, including SAML-enforced MFA.

Rated Critical for cybersecurity, OpenAI’s new model beats GPT-5.6 Cyber at exploitation while staying in scope more reliably.

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The 2026 Virtual CISO Forum brings together CISOs, senior cybersecurity executives, practitioners, industry experts, and other security leaders to share practical experience and examine the issues shaping enterprise cybersecurity strategy.
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SecurityWeek’s CISO Forum 2026 Year-End Virtual Roundtable will reflect on a landmark year in security and discuss how to fortify your enterprise strategy for 2027.
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Vulnerabilities

Cybercrime

The use of microservices and containers like Docker have led to a revolution in DevOps. Providing the agility that business have long awaited, these new technologies also introduce inherent security implications that cannot be ignored at a time when the enterprise attack surface continues to grow wider. Let’s consider these risks and how organizations can minimize their exposure to them.

A threat actor linked to China hijacked the website of a prominent U.S. trade association in an effort to deliver reconnaissance malware to individuals who accessed certain web pages.

Programmable logic controllers (PLCs) from several major vendors are affected by implementation flaws that can be exploited by attackers to execute arbitrary commands on the vulnerable devices, researchers warned.

My good friend and (full disclosure) ThreatQuotient Board member, Marty Roesch, once said in a meeting, “Complexity is the enemy of security.” Not sure if he was the first to say it or was quoting someone else, but it stuck with me. It is a simple statement and one that is proven true time and time again.

Cisco published an advisory on Wednesday to warn customers that some of the company’s Aironet access points are affected by a critical flaw that could allow an attacker to take complete control of a vulnerable device.

Google this week released security updates for Android to resolve numerous Critical remote code execution (RCE) and elevation of privilege (EoP) vulnerabilities in the platform.

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