THE PRESENT INVENTION RELATES TO A COMPUTER SECURITY TOOL THAT USES IMAGE BASED PASSWORD AUTHENTICATION, AND MORE PARTICULARLY TO A METHOD OF IMAGE BASED PASSWORD AUTHENTICATION TO PREVENT SHOULDER SURFING AND FREQUENCY OF ANALYSIS SECURITY THREATS, CHARACTERIZED BY A USER ACCOUNT REGISTRATION PHASE, AN AUTHENTICATION PHASE, AND A TERMINATING PHASE. THE AUTHENTICATION PHASE IS CARRIED OUT TO PROVIDE A METHOD OF RESISTANCE MECHANISM THAT UTILISES THE INTEGRATION OF UNIFORM AND METAHEURISTIC RANDOMIZATION APPROACH INTO A REVISED VISUAL IDENTIFICATION PROTOCOL SCHEME. DRAWING ACCOMPANYING ABSTRACT: FIG. 1