Nick Berrigan, 14, successfully hacked into his parents' AOL account on the first try Tuesday, correctly guessing that 'Digby' was their password. 'They actually used the dog's name,' said Berrigan, deactivating the parental controls on his AOL account. 'They don't give me much credit, do they?' Experts advise parents to secure Internet accounts with any password besides the name of a family pet. 