A successful Bitcoin double spend – USD 10000
I've actually thought about putting some play money in Bitcoin, but these stories prevent me from doing so.<p>This guy is (apparently?) unhappy, and he's knowledgable enough about bitcoin to know to inspect forks and vins and OKPAY transactions -- and then to make two double (?) spend transactions.<p>If this guy is getting screwed, I'd surely manage to lose twice my investment somehow.