Today, a security research institute claimed that spammers are using an automated program to bypass the CAPTCHA mechanism set up in Microsoft Live services. This mechanism is designed to prevent spammers from creating a large number of accounts in Live Mail. Dan Hubbard, vice president of Websense Security Labs, said that this rogue program was specifically designed to break CAPTCHA, which stands for "Completely Automated Public Turing Test to Tell Computers and Humans Apart." This mechanism uses distorted, twisted letters in an image for users to identify. Generally, humans can successfully identify these letters, while automated programs cannot pass the recognition test, ultimately preventing them from creating a large number of accounts.