Coldcard Breach Sparks Massive Coin Migration, Not Profit-Taking

A recent breach of Coldcard hardware wallets has led to a significant decline in long-term holder (LTH) supply, but it's not what it seems. Approximately 210,000 BTC left LTH wallets over the past week, pushing the cohort's total supply down from just under 15 million BTC to about 14.7 million.

This is the largest weekly decline in LTH since December 2024, and it would normally signal a market top. However, the breach was exploited due to a weak random-number flaw in Coldcard firmware dating back to 2021, which led to a massive migration of coins, with almost none of it being profit-taking.

The tell is in the conditions: heavy LTH spending usually clusters around market peaks when holders sell into rising demand and take profits. In this case, the market peak was roughly 50% below its October record high, which suggests something other than profit-taking is at play.