Many websites ask the same questions. If one answer gets exposed, the  information is out. Create long, random answers and store them somewhere safe.
Mae llawer o wefannau'n gofyn yr un cwestiynau. Os daw un ateb i'r amlwg,  mae ar gael i bawb. Crëwch atebion hir, ar hap a'u cadw'n rhywle diogel.