Not so long ago some companies that do business online have been caught while giving away or selling data about their clients. Some of these companies provide guarantees on their websites, saying that customer information will stay private. Some companies that buy customer information provide the option for individuals to have their data removed from the database, also known as opting out. Nevertheless, many clients are uninformed if an when their information is being shared, and can not stop the transfer of their data between companies if such activity happens.