British bitcoin exchange CoinCorner has debuted a multisig BTC custody service that splits control of customer keys between the Isle of Man exchange and its US partner AnchorWatch — with holdings insured by Lloyd’s of London. 

The service charges 1.5% a year and is pitched at owners who want cold-storage security without managing hardware themselves, the Isle of Man-based company announced Tuesday.

Its new service comes following the Coldcard wallet hack — where bitcoin holders using a single signature wallet lost funds after hackers were able to exploit the popular products due to a firmware bug in the devices that lead to a weak seed generation. About $115 million was lost in…

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