http://bentasker.i2p/posts/blog/security/471-the-curious-case-of-bitfi-and-secret-persistence.html
My Interests I shouldn't need to write this last section really, but having seen the conduct of the two BitFi related accounts on Twitter it seems better to answer some questions in advance: Yes, I do hold/own some Bitcoin No, I do not own a Bitfi No, I do not own a Trezor, Ledger or other hardware wallet No, I'm not going to disclose how I store those Bitcoin as it's irrelevant Yes, I'm aware of other serious attacks on other devices, such as this...