Bitcoin technology, including the protocol and cryptography, has a strong security record, and the Bitcoin network is perhaps the largest distributed computing project in the world. The most common weak link in Bitcoin is user error. Bitcoin wallet files that store private keys can be accidentally deleted, lost, or stolen. This is very similar to physical cash stored in electronic form. Fortunately, users can use reliable security policies to protect their funds and can use providers that provide good security levels and insurance services against theft or loss.
