The Master password is necessary for the overall protection and secure access of your data. Your Master password should be a combination of characters that only you know, and subsequently it should be difficult for others to guess. RoboForm requires a minimum Master Password length of 8 characters, with a minimum of 4 nonnumeric characters.
No RoboForm data can be accessed without the Master Password. Because RoboForm does not transmit your Master Password to our servers, we have no way of knowing this information.
NOTE: All RoboForm data is packed into a single file, which is encrypted using AES encryption with 256-bit keys. To protect against dictionary, brute force, or other attacks, we generate encryption keys using the PBKDF2 password hashing algorithm with a random salt and SHA-256 as a hash function. Decryption of your RoboForm data happens on your device and not on our servers.
Should you forget your Master Password, we are unable to assist aside from providing reset instructions. For security purposes, during a reset, your existing RoboForm data is deleted. In order to prevent such a deletion, it is extremely important to memorize your Master Password.