CALIFORNIA:- Hidden software that can record every letter typed on a computer keyboard has been discovered pre-installed on hundreds of HP laptop models. Security researcher Michael Myng found the keylogging code in software drivers preinstalled on HP laptops to make the keyboard work. HP said more than 460 models of laptop were affected by the “potential security vulnerability”. It has issued a software patch for its customers to remove the keylogger. The issue affects laptops in the EliteBook, ProBook, Pavilion and Envy ranges, among others. HP has issued a full list of affected devices, dating back to 2012.