An intelligent banknote neutralisation system (IBNS) is a security system which protects valuable items by rendering them unusable or easily detectable if an unauthorised individual tries to gain access to them. Dye packs are commonly used to safeguard currency against bank robberies in this manner; when such a pack is taken out of the bank, it releases an indelible dye that stains the money with a conspicuous bright color, making it easy to recognise as stolen. Bonding agents (glues) have been used more recently as alternative degradation agents.

Cash-in-transit (CIT) or cash/valuables-in-transit (CVIT) is the physical transfer of banknotes, coins, credit cards and items of value from one location to another. The locations include cash centers and bank branches, ATM points, bureaux de change, large retailers and other premises holding large amounts of cash, such as ticket vending machines and parking meters.