Following any unauthorised attempt to access the banknotes via the various forms of attack, the banknotes must be either destroyed or stained.
Tar éis iarracht neamhúdaraithe a dhéanamh chun rochtain a fháil ar na nótaí bainc trí na cineálacha éagsúla ionsaí, ní mór na nótaí bainc a scriosadh nó a smálú.