When responding to emails, choosing the ‘reply to all’ option could also result in information being sent to people that aren’t meant to have access to it.
Wrth ymateb i negeseuon e-bost, gallai dewis yr opsiwn 'ateb i bawb' hefyd arwain at anfon gwybodaeth at bobl nad ydynt i fod i gael mynediad iddi.