BTC Sessions says Coldcard flaw may rank as Bitcoin’s worst self-custody incident

BTC Sessions says Coldcard flaw may rank as Bitcoin’s worst self-custody incident

N
News Editor
2026-08-26 20:01:51
Bitcoin News said in a post on X that BTC Sessions described a weeks-long effort by his team to help Bitcoin holders affected by the Coldcard vulnerability move funds to safety. He estimated that the work protected tens of millions of dollars worth of BTC during that period. Even so, he said the response came too late for many users. According to his account, one member of his local Bitcoin community lost 90% of their Bitcoin, while another woman he spoke with lost all of hers. BTC Sessions said the episode could be the most severe self-custody incident in Bitcoin’s history. He added that the experience pushed him to rethink asset custody, with diversified security measures standing out as the main lesson.

Bitcoin News said in a post on X that BTC Sessions reported his team spent weeks helping Bitcoin holders affected by the Coldcard vulnerability move their funds to safety. He estimated that the effort protected tens of millions of dollars worth of Bitcoin.

BTC Sessions also said that for many people, the help came too late. One member of his local Bitcoin community lost 90% of their Bitcoin, while another woman he spoke with lost all of hers.

He described the episode as possibly the most serious self-custody incident in Bitcoin’s history. BTC Sessions added that the experience forced him to rethink asset custody, and that diversified security measures were the key lesson.

This article was originally published by Bit.Fan. For more cryptocurrency news and market insights, visit www.bit.fan.
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