How an Attacker Steals Your 24 Words – The ColdCard Debacle

This week a hardware wallet brand Coldcard had an exploit that sent shockwaves through the community. A vulnerability in its entropy (randomness) generation algorithm allowed malicious bots to predict (or crack) seed phrases, leading to millions of $$ in stolen Bitcoin. Users of Colcard had the worst day in their lives yesterday when they woke … Continue reading How an Attacker Steals Your 24 Words – The ColdCard Debacle

What Type of Bitcoin Wallet You Have? (And Why It Could Be Costing You More in Fees)

I've been using Bitcoin for more than a decade, and to be honest, I'm still not entirely clear on all the different Bitcoin wallet address types. In fact, did you even know there are different formats for Bitcoin addresses? And more importantly, do you know why they exist? I recently got this message from my … Continue reading What Type of Bitcoin Wallet You Have? (And Why It Could Be Costing You More in Fees)