Bitcoin-only daily newsletter with the highest signal-to-noise ratio in the industry.

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OPSEC FEATURE ARTICLES

A USB Cable and 45 Seconds: How the MediaTek Chip Flaw Exposes Your Bitcoin Wallet

Apr 1, 2026

6 min read

A USB Cable and 45 Seconds: How the MediaTek Chip Flaw Exposes Your Bitcoin Wallet

Ledger's Donjon security lab proved that physical access to a powered-off Android phone is enough to extract wallet seed phrases.

Fake Cops and Real Knives: A Physical Defense Playbook for Bitcoiners

Mar 25, 2026

7 min read

Fake Cops and Real Knives: A Physical Defense Playbook for Bitcoiners

Wrench attacks surged 75% last year, with fake police raids and armed home invasions targeting Bitcoiners across Europe. Here's how to make compliance impossible.

Your AI Agent Wants Your Keys: A Sovereignty-First Security Playbook for the Agentic Wallet Era

Mar 18, 2026

8 min read

Your AI Agent Wants Your Keys: A Sovereignty-First Security Playbook for the Agentic Wallet Era

AI agents are learning to spend bitcoin. Most of them ship with a security model that would make a custodial exchange blush. Here's how to automate without abdicating.

WEEKLY COMPILATIONS

Your Weekly Bitcoin Breakdown Compilation 📬

Apr 4, 2026

58 min read

Your Weekly Bitcoin Breakdown Compilation 📬

Read issue #512 of the Bitcoin-only daily newsletter with the highest signal-to-noise ratio in the industry.

Mar 28, 2026

59 min read

Your Weekly Bitcoin Breakdown Compilation 📬

Read issue #506 of the Bitcoin-only daily newsletter with the highest signal-to-noise ratio in the industry.

Mar 22, 2026

60 min read

Your Weekly Bitcoin Breakdown Compilation 📬

Read issue #500 of the Bitcoin-only daily newsletter with the highest signal-to-noise ratio in the industry.

Bitcoin-only daily newsletter with the highest signal-to-noise ratio in the industry.

Latest ISSUES

Block's Fake Faucet Leaked 🔓, Schwab Folds on Bitcoin 📈, Peak Fear Signals Rebound ⚖️

Bitcoin Absorbs Sybil Attack 🛡️, Block Launches Decentralized AI 🤖, Solo Miners Bag $600K ⛏️

Blockstream Ships Quantum Shield 🛡️, Australia Skips Self-Custody Rules 🇦🇺, Genius Dumps All Bitcoin 💰

OPSEC FEATURE ARTICLES

A USB Cable and 45 Seconds: How the MediaTek Chip Flaw Exposes Your Bitcoin Wallet

Fake Cops and Real Knives: A Physical Defense Playbook for Bitcoiners

Your AI Agent Wants Your Keys: A Sovereignty-First Security Playbook for the Agentic Wallet Era

WEEKLY COMPILATIONS

Your Weekly Bitcoin Breakdown Compilation 📬

Your Weekly Bitcoin Breakdown Compilation 📬

Your Weekly Bitcoin Breakdown Compilation 📬