Cybersecurity News

Cisco Talos is aware of eight intermediate certificates belonging to the intermediate certificate authority, eMudhra.

North Korean hackers are using a post-quantum cryptographic mechanism to secure malicious payload delivery in new operations that combine old and new malware. [...]

Stop PHP2Shell with SentinelOne. Learn how Singularity Agent stops web worker post-exploitation, kills process trees, and hunts threats.

Hidden instructions told WhatsApp’s chatbot not to suggest privacy regulators to users struggling to delete their accounts.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that attackers are actively exploiting four vulnerabilities in Plex Media Server. [...]

Storm-0940 used ARTEX agentic AI to accelerate a ConnectWise supply chain compromise, enabling application credential abuse across Microsoft 365 environments. The post AI-driven, large-scale nation-state campaign using ARTEX enables supply chain compromise appeared first on Microsoft Security Blog.

Protections have been added against scams and social engineering, including new site warnings and server-side Gemini analysis. The post Google Hardens Chrome Against ClickFix Attacks, Insecure HTTP Connections appeared first on SecurityWeek.

Several cybersecurity companies saw exploitation attempts of CVE-2026-109618 and CVE-2026-109619 before PHP released the patches. The post PHP2Shell Patches Land as First Exploitation Attempts Hit Sensors appeared first on SecurityWeek.

CVE-2026-109618 and CVE-2026-109619 are Critical vulnerabilities in PHP, a scripting language used globally for web servers and CMS systems. The post Threat Brief: Critical Vulnerabilities in PHP: CVE-2026-109618, CVE-2026-109619 appeared first on Unit 42.

OpenAI agents powered by the GPT-6.1 Sol and GPT-6 Astra models weakened misalignment monitoring during two internal tasks, interpreting coding instructions as authorization to do so. [...]

Websites are temporarily going offline as admins address two critical PHP flaws that could let attackers run malicious code on their servers.

Expect to see quite a few websites serving "404" or "Page Not Found" errors today: Nearly 70 percent of websites need to update their core software to fix a pair of vulnerabilities that allow an attacker to seize full control over affected servers. Experts say there are working exploits for the flaws, and that these critical bugs are already being exploited in the wild.

Two critical remote code execution vulnerabilities in PHP core could have implications across its wider ecosystem. Talos has published a blog to explain what we know so far, and details the Snort coverage available, including rules in the Community Ruleset.

Researchers have uncovered Athena StealthRoute, a phishing-as-a-service platform featuring an AI Studio that generates phishing lures and decoy content designed to conceal attacks

Deceptive prompts lure AI agents into decoys and dead ends, cutting attack success by up to 91% in tests and raising the cost of a successful attack 23-fold. The post ‘Context Bombs’ Cut AI Attack Success by Misleading Agents With Fake Targets appeared first on SecurityWeek.

Rapid7’s Q3 analysis finds high-severity flaws exploited within three days on average, while AI appeared in just 8% of tracked incidents. The post High-Severity Flaws Exploited in Three Days as Ransomware Dominates Q3: Rapid7 appeared first on SecurityWeek.

The PHP security team released emergency security patches for two critical remote code execution (RCE) vulnerabilities (CVE-2026-109618 and CVE-2026-109619) tracked collectively as PHP2Shell. [...]

An investigation into a threat actor bypassing AI safety controls to coordinate credential theft, VoIP fraud planning, and database exfiltration. The post “Next Exploit Opportunities”: How a Threat Actor Used AI to Help Plan and Execute Multiple Types of Cybercrime Activities appeared first on Unit 42.

ClickFix attacks are surging as cybercriminals use fake AI installers, malicious search results, and trusted chatbot platforms to trick users into executing malware. Push Security examines how these attacks evade traditional defenses and why AI tools have become increasingly effective lures. [...]

Researchers at Symantec have uncovered an AI agent designed to operate a full cyber-attack without human intervention

The project overseeing the programming language is releasing patches Wednesday, with the internet racing to patch the 9.2 rated flaw. The post PHP releases emergency fixes for 2 critical vulnerabilities appeared first on CyberScoop.

Asymptote Labs raises $5.5M seed led by Tower Research Ventures to commercialize its Beacon AI agent runtime security platform. The post Asymptote Labs Lands $5.5 Million Seed for AI Agent Runtime Security appeared first on SecurityWeek.

The update fixes 353 flaws, including 163 memory corruption and 125 use-after-free vulnerabilities. The post Memory Bugs Account for Most of Chrome’s 353 New Security Fixes appeared first on SecurityWeek.

A convincing “creator portal” uses your own YouTube videos and viewing figures to steal your Google login.

In two internal incidents, agents read routine coding instructions as permission to weaken monitoring, and one gave a false answer about it. The post OpenAI Agents Silenced Security Team Alerts, Removed Misalignment Monitor appeared first on SecurityWeek.

Microsoft has released PowerToys 0.102, with two new mouse utilities, new command-line tools, and Command Palette improvements. [...]

Updated: The NCSC is encouraging UK organisations to take immediate action to mitigate a security issue affecting PHP (CVE-2026-109618 and CVE-2026-109619).

CISA strongly urges organizations to immediately patch the recently disclosed critical vulnerabilities in PHP, CVE-2026-109618 and CVE-2026-109619. These vulnerabilities, known as “php2shell,” allow for unauthenticated remote code execution in PHP and affect all PHP installations serving web requests. Organizations should immediately update to PHP 8.5.12, 8.4.27, 8.3.36, or 8.2.35 to fix these vulnerabilities. While CISA has not observed exploitation of these vulnerabilities as of the time of publication, they pose a risk to organizations if left unpatched.  CISA urges organizations to take the following actions: Identify and inventory systems running any version of PHP across your organization.  PHP is often a component of other software and prevalence may not be directly observable. Apply the patch immediately, prioritizing internet-facing systems. Organizations that cannot update immediately, or that continue to use PHP 8.1 or earlier unsupported versions, should take PHP-

Cybercriminal groups The Gentlemen and Qilin dominate ransomware attacks - and both are evolving their tactics in an attempt to outdo one another

A flaw in Signal’s calling library could let another participant keep hearing you after you hang up. Update your app to get the latest fixes.