“Bitcoin is actually much more like cash than most other forms of payment. Each transaction only contains an address (a unique string of characters) for the sender, an address for the recipient, and the amount of Bitcoin being transferred between them. The address can only successfully send Bitcoin if it has access to the private key associated with a person’s Bitcoin wallet. This private key is never sent as part of the transaction, however. But just as importantly, using Bitcoin instead of a credit card also means that no personal data is transmitted or stored. That leaves potential data thieves empty-handed save for the Bitcoin addresses, which are useless without the private keys.”
http://moneymorning.com/2014/01/17/using-bitcoin-make-target-style-data-breach-obsolete/
Tip Freedomwat.ch Staff with Bitcoin