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Hack the Moon: A Multi-Agent Prompt Injection Challenge

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5 min read

Discover how a seemingly harmless multi-agent AI system can be manipulated through indirect prompt injection. A practical walkthrough of the challenge we built for BlueHat 2026, the exploit, and the lessons it teaches about securing agent-to-agent communication.Read more...

CVE-2025-8556 - Cryptographic Issues in Cloudflare’s CIRCL FourQ Implementation

October 8, 2025

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8 min read

A deep dive into the vulnerabilities we discovered in Cloudflare’s FourQ implementation. Explore invalid-point attacks, Edwards curve edge cases, and the engineering process behind responsibly disclosing and fixing real-world cryptographic flaws. Read more...

Hacking eBPF & LLVM for Fun and Profit

September 11, 2024

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8 min read

See how LLVM can be extended to overcome practical eBPF limitations. This post walks through custom compiler passes, eBPF internals, and the groundwork for automatically splitting oversized programs using tail calls.Read more...

Unraveling the Bluetooth Enigma: Extracting the Flag from BSides TLV 2022 CTF 'Handsfree'

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6 min read

A forensics challenge we contributed to the BSides TLV 2022 CTF, built around the real-world problem of recovering usable data from an over-the-air Bluetooth capture. In this post we provide a complete write-up, from protocol analysis through to extracting the flag.Read more...

Decoding the 90s: A Journey into Reverse Engineering and Cryptography in Early Software Development

August 25, 2020

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10 min read

Commissioned to recover a cache of locked QText documents from the mid-90s, we reverse engineered a DOS-era word processor and its encryption scheme. A look at how cryptography was implemented in the early days of consumer software, and how we broke it.Read more...