Best Bitcoin Security Newsletters in 2026

SubstackEvery two weeks · last post 17 days ago

From recent posts: The Informationist publishes weekly articles analyzing US fiscal policy, Treasury market volatility, and mortgage rate trends for investors and economists. The publication mixes in-depth economic analysis with…

Likely audience: individual investors

SubstackEvery two weeks · last post 10 days ago

From recent posts: Bitcoin Katie publishes weekly articles analyzing Bitcoin security vulnerabilities, protocol forks, and financial crises in Europe. The publication focuses on technical self-custody, hardware wallet exploits, and…

Likely audience: Bitcoin self-custodians

SubstackSeveral times a week · last post 8 days ago

The one-stop shop for Bitcoin education. Join thousands of readers around the internet who love HiFi Bitcoin.

Likely audience: Cryptocurrency investors

SubstackWeekly · last post 14 days ago

From recent posts: This newsletter discusses the upcoming Bitcoin Japan Expo, highlighting increased focus on security and personal literacy sessions amidst recent data breaches, alongside a discussion on the risks of KYC versus self-cust…

Likely audience: Bitcoin investors

Substacklast post Jun 24, 2026

From recent posts: The article highlights Ankr's expansion into a comprehensive Web3 product ecosystem, showcasing its RPC services, rollup infrastructure, and liquid staking solutions while citing case studies from companies like Zotto a…

Likely audience: Blockchain developers

Substacklast post Dec 7, 2023

Behind the scenes look into the weekend projects I’m working on and articles I write that need a home.

Likely audience: Bitcoin enthusiasts