A significant attack on Coldcard wallets has resulted in substantial losses of Bitcoin. The incident affected over 1,200 addresses, with estimated losses reaching up to $89 million. Security researchers have identified a potential software flaw that may have enabled the theft.

It is reported that roughly $70 million worth of bitcoin was stolen in under an hour. Further information on this incident is available from security researchers and other sources, including FOX 11 Los Angeles. Details of the attack and its implications can be found through these channels.