Hire us to red team your AI


"Calif successfully breached security to reach critical assets, providing us with invaluable insights to lock down our environment. I highly recommend Calif to any organization serious about identifying and fixing security flaws"

Jason Clinton

CISO, Anthropic

Cresta AI

"Calif simulated an attack by a determined sophisticated threat actor, testing our detection capabilities over weeks. The results are invaluable recommendations how to harden our infrastructure and applications even more"

Robert Kugler

Head of Security & Compliance, Cresta AI


"I can’t recommend Calif enough. Absolute super company, highly skilled, experienced and professional. Go read about Thai and his team."

Graham Calladine

Security Engineering Manager, Snap Inc.

Our Services


Red Teaming

Because sometimes the best defense is a good offense.


Security Engineering

{Safe, Fast, Easy} — We help you choose three.


Cryptography Consulting

We do math to help you use cryptography correctly.


Digital Forensics

Got breached? Call us to make sure it won't happen again.

Trusted by Top Firms

google let's encrypt fitbit metr vietcombank vnpay

Why Us


We're a diverse group of award-winning hackers and builders, with decades of experience hacking and defending some of the most important software products on Earth.


We don't just hack, we turn security into a competitive moat, by making your products safer, faster, easier.


We do our part in making the world a safer place for everyone, by defending non-profit organizations, hospitals, and the world's forces for good.

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