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firewallpulse
Bits, bytes and breaking security news

Firewall Pulse

Vulnerabilities

Anthropic’s Claude Identifies 493 Security Flaws in Open-Source Codebases

An AI model flagged hundreds of vulnerabilities across twenty-five projects, including one issue that remained hidden for two decades.

Cyber Attacks

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OpenAI Chrome Extension Gets Tab Read and Action Access, Sparking Enterprise Security Concerns

OpenAI’s updated extension can now read open tabs and execute browser actions, raising access control concerns for enterprise security teams.

Cloud Security

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Vulnerabilities

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Data Breaches

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Data Breaches

Data Classification Mistakes That Expose Your Infrastructure

Data Breaches

Credit Freezes: 6 Common Misunderstandings That Leave You Exposed

Data Breaches

Email Account Compromise Prevention Checklist for Secure Operations

Data Breaches

Password reuse is a security risk: how to break the chain

Latest news

At Firewall Pulse you will find daily coverage of cyber attacks, cloud security and vulnerabilities and step-by-step guides written for security operations teams. Bits, bytes and breaking security news. Last updated October 21, 2026.

About Firewall Pulse

What does Firewall Pulse cover?

Firewall Pulse covers cyber attacks, cloud security, vulnerabilities, data breaches, malware and ransomware, threat intelligence. You get the news first, then 114 guides that show how the attacks and the fixes work.

Where does Firewall Pulse get its information?

Firewall Pulse gets its information from more than 150 sources, led by official advisories, the CISA Known Exploited Vulnerabilities catalog, the National Vulnerability Database, vendor notices and published research. The sources are listed at the end of each article.

How often is Firewall Pulse updated?

Firewall Pulse is updated as soon as a primary source confirms a story, at any hour. The fastest sources are checked every 45 seconds. Short first reports are extended later, and guides are revised when they go out of date.

Is AI used to write Firewall Pulse articles?

Yes. AI has been used to draft Firewall Pulse articles from the listed sources since 2026. Automated checks reject numbers, quotes and claims the sources do not back up. See the editorial policy, or the corrections page to report an error.