Ever since banknotes were invented, people have tried to forge them. The Bank of England started issuing notes in 1694, and the first forger was arrested in… 1695! With the advent of devices like colour scanners or laser printers, the fight against forgery has become harder, and banks have been forced to develop increasingly sophisticated security features, explained by a spokesperson at the Bank in this interview.
The Bank of England
CECR : A2, B1