Chinese bitcoin exchange disappears with $4.1 million Man says he lost $500,000 in virtual currency heist (probably to windows malware) Bitcoin Payment Processor BIPS Attacked, Over $1m stolen Hackers steal $1.2m of bitcoins from Inputs.io, a supposedly secure wallet service Bitcoin Worth £4.6 Million Is Buried Under A Landfill In South Wales A big chunk of bitcoins seems to be lost forever Similarly, losing bank account password does not imply losing access to money, worst case, there will be a long phone call with customer care but losing bitcoin wallet implies that bitcoins are permanently lost.