Patent ID: 7370209

Claim:
A method for increasing the difficulty of data sniffing, comprising: prompting a user with a computer to input sensitive information into the computer; identifying to the user with the computer first characters available for input by the user and second characters that the first characters signify, each of the first characters signifying one of the second characters; explicitly identifying to the user with the computer the relationship between the first and second characters so as to explicitly indicate to the user the second character that each first character signifies; receiving with the computer from user keystrokes entered with a physical keyboard input of selected first characters that signify second characters that comprise part of sensitive information of the user; and interpreting the input first characters to determine the sensitive information that the input first characters signify such that the user can convey the sensitive information without actually entering the characters of that information so that the sensitive information cannot be captured through collection of the user's keystrokes alone.