Most logins today are protected by a password. If an attacker can get your password, he can access your account and do anything you could do with that account. So when you ask how secure your account is, you should really be thinking about how safe your password is. And that means you have to think about all the different ways that an attacker could access your account’s password:
Mae'r rhan fwyaf o fewngofnodion heddiw wedi'u diogelu gan gyfrinair. Os gall ymosodwr gipio'ch cyfrinair, gall gael mynediad i'ch cyfrif a gwneud unrhyw beth y gallech chi ei wneud gyda'r cyfrif hwnnw. Felly pan ofynnwch pa mor ddiogel yw'ch cyfrif, dylech fod yn meddwl pa mor ddiogel yw'ch cyfrinair. Ac mae hynny'n golygu bod yn rhaid i chi feddwl am yr holl wahanol ffyrdd y gallai ymosodwr gael mynediad at gyfrinair eich cyfrif: