The Panama Papers—a collection of documents leaked from off-shore law firm Mossack Fonseca in 2014—included documents that appeared to indicate that Pakistani Prime Minister Nawaz Sharif had been embezzling quite a sizable amount of cash.
The Pakistani Supreme Court set up an investigation to work out where the money came from.
Sharif produced documents from his daughter Maryam Nawaz to show that the money had been acquired legitimately. Turns out they were fake. So how was the forgery detected?
A series of documents presented to the investigation that were claimed to have been written, and signed, in 2006 used Microsoft’s Calibri font.
The Calabri font was not included in Windows or Office until 2007!