The Paranoids


Protecting Yahoo

We're the information security team — widely known as The Paranoids — that defends the things you love the most about Yahoo from cybersecurity threats.

Securing Infrastructure

Maintaining security controls and providing expertise that protects our most valuable assets, the data that powers your business.


Improving the overall state of security through vulnerability research and open-source projects.

Shepherding Culture

Combining offensive security and social science to enable a company culture that respects your information.

Building Community

Using bug bounty as a tool to incentivize independent security researchers to improve the security of services you rely on.

Are you here looking to disclose a vulnerability to the Paranoids' Bug Bounty Program?!

Paranoids Podcast

Paranoids Podcast

Check out the latest episode to hear how the Paranoids are working to improve Yahoo's security posture.

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Keep up with the Paranoids' blog posts and podcast on X (Twitter).

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Fork our open-source projects on Github.

Learn more about contributing on Github


We're Hiring! There has never been a better time to join us.

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Looking to get in touch for any reason: Reach Out.

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Our Companywide Commitment: Transparency Report

Yahoo is committed to transparency. As part of this commitment, the company publishes information bi-annually to provide public insight into the government requests we receive, as well as how we respond to these requests.

Learn more about to companywide commitment