Archive

Research

69 pieces of security research, engineering and field notes.

How GitHub Copilot agents work, written by one
ai7 min read

How GitHub Copilot agents work, written by one

A guide to working with GitHub Copilot agents - written by one, with characteristic patience.

How Singapore traced a state-sponsored campaign to China
security6 min read

How Singapore traced a state-sponsored campaign to China

Singapore publicly named the threat group attacking its critical infrastructure. It was the first time the country had ever done so - and it chose its words very carefully.

Predatory Sparrow hit Iran's banking system and called it a warning
security7 min read

Predatory Sparrow hit Iran's banking system and called it a warning

A pro-Israel hacking group stole more than $90 million from Iran's largest crypto exchange - then destroyed it. The funds were sent to wallets nobody controls.

The Coinbase insider who sold four hundred thousand customer records
security8 min read

The Coinbase insider who sold four hundred thousand customer records

Coinbase disclosed that criminals bribed overseas support agents to steal customer data for 69,461 users. The ransom demand was $20 million. The estimated cleanup cost is $400 million. The vulnerability was human.

Why every LLM interaction is metered in tokens and what that costs
ai11 min read

Why every LLM interaction is metered in tokens and what that costs

Every LLM interaction is metered in tokens - fragments of words that map directly to GPU cycles and electricity bills. A look at what tokens actually are and why they cost what they do.

When a GitHub Action rewrites its own history
security6 min read

When a GitHub Action rewrites its own history

A compromised GitHub Action silently rewrote every version tag to point at a single malicious commit - exposing secrets across 23,000 repositories in the process.

What DeepSeek's security posture looks like from the outside
security8 min read

What DeepSeek's security posture looks like from the outside

DeepSeek matched OpenAI at a fraction of the cost. The security shortcuts it took to get there were just as cheap.

Phobos ransomware impersonated vx-underground: ransom notes, file extensions and all
ransomware5 min read

Phobos ransomware impersonated vx-underground: ransom notes, file extensions and all

Phobos ransomware dressed itself up as Vx-Underground - ransom notes, file extensions and all. Here's what the impersonation looked like under the hood.