When performing Cryptanalysis, code breakers have a wish list of things they would like to collect.
- Two copies of the same message, encrypted with different passwords.
- A copy of a message known to the code breaker, encrypted with your password and encryption scheme.
- More volume of encrypted data, for frequency analysis.
- Your password, stolen from your wallet, or computer screen or hard disk drive.
This list is not meant to be exhaustive, but endeavors to assist laymen, in knowing what behaviors expose their data to security threats.