In addition to financial benefits, there are several elements that secure bitcoin from theft. Cryptography controls the creation and transfer of a cryptocurrency, and the protocols underlying bitcoin have proven to be robust. Bitcoin's use of a distributed ledger known as blockchain gives owners a record of all their transactions that cannot be tampered with because there is no single point of failure.However, this hasn't stopped attackers from exploiting vulnerabilities within bitcoin exchanges or wallets -- the software used for storing bitcoins on computers or smartphones. Bitcoin exchanges are not regulated by the government, and they generally do not provide enough insurance and security to be used to store money in the same way as a bank.