The Bank of England has become the latest in a line of banking institutions to experience an e-mail hoax, after 100,000 e-mails sent out by admin@bankofengland.co.uk bounced back to it in late December. The e-mails claimed that by downloading an attached software file called "antikeylog2004.exe", recipients would help prevent credit card fraud. The attachment was later proved to hold a virus. Experts from the National High Tech Crime Unit are still trying to ascertain the purpose of the hoax