1. A method of executing a function of an electronic device using fingerprint verification, the method comprising: acquiring a security level of the function to be performed, if the function requires the fingerprint verification; receiving a fingerprint input of a user; determining a count of a number of matching points that exist between the fingerprint input and a prestored fingerprint; comparing the count of the number of matching points with a minimum number of matching points corresponding to the security level of the function; displaying an error message when the count of the number of matching points is less than the minimum number of matching points corresponding to the security level of the function; determining, if a number of times that the error message has been displayed is greater than or equal to a preset number, whether the function is to be executed by changing the security level of the function; and changing the security level of the function and executing the function, wherein changing the security level of the function comprises changing the minimum number of matching points corresponding to the security level of the function for executing the function.