$137 million in Bitcoin, other cryptocurrency lost after man who ran exchange suddenly dies, taking passkeys with him


A “cold” wallet, meanwhile, is hosted offline on hardware, usually a laptop or popular products like the USB stick-style Ledger Nano. They’re slower for moving funds and can’t be used to convert cryptocurrency back into regular dollars and cents, but they’re also safer from hacking attempts and, importantly, you own the passkey to them.



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