The Information Commissioner defines a vexatious request as one which has “the potential to cause a disproportionate or unjustified level of disruption, irritation or distress.”
Mae’r Comisiynydd Gwybodaeth yn diffinio cais blinderus fel un “sydd â photensial i achosi lefel anghymesur neu na ellir ei chyfiawnhau o darfu, cythruddo neu beri gofid.”