Countries have hard-forked cash to invalidate large thefts. > When Iraq invaded Kuwait in 1990, the Iraqi dinar replaced the Kuwaiti dinar as the currency and

Countries have hard-forked cash to invalidate large thefts. > When Iraq invaded Kuwait in 1990, the Iraqi dinar replaced the Kuwaiti dinar as the currency and large quantities of banknotes were stolen by the invading forces. After liberation, the Kuwaiti dinar was restored as the country's currency and a new banknote series was introduced, allowing the previous notes, including those stolen, to be demonetized. https://en.wikipedia.org/wiki/Kuwaiti_dinar https://en.wikipedia.org/wiki/Kuwaiti_dinar > the Central Bank of Kuwait (CBK) announced the withdrawal of Kuwaiti Dinar currency notes issued and placed in circulation up to August 1,1990, and the issue of currency notes of the new design against those notes withdrawn. The Bank also announced that they will not accept certain series of old Kuwaiti Dinar currency notes in different denominations in exchange of new currency notes so issued. The final date for the conversion into new design notes of valid old Kuwaiti Dinar currency notes, held abroad by individuals and banks was 30.09.91. http://www.island.lk/2001/10/11/busine02.html http://www.island.lk/2001/10/11/busine02.html