MI5 / Spy life · History
Mata Hari Demanded a Million Francs to Spy for France
French intelligence offered a mission to a woman already watched by Britain. The surviving account describes an extravagant price and an ineffective amateur.
SPY REGISTER
Intelligence history
GCHQ / Cyber & technology · History
Germany Offered Mexico Three American States. British Codebreakers Read the Offer.
The Zimmermann Telegram became a diplomatic weapon in 1917. London first had to hide how it had acquired it.
MI5 / Spy games · History
A Tailor’s Ticket Unmasked Germany’s Spy in Britain
Carl Hans Lody travelled with an American passport. British censors read his messages, and a label in his jacket exposed his real identity.