When he died in 1773, he was buried in Westminster Abbey, where he lies today, north-east of the intersection of the nave and the transept. In the 1840s, revolutionary social forces closed down Europe's black chambers just as technology fostered an invention that changed the face of cryptology. This was the telegraph. It led to the development of the field cipher for army signal communications and of thick codebooks for foreign ministries and navies. But the greatest impetus ever for cryptology came from radio.
Radio is easy to intercept.
In effect it turns over all the messages it handles to the enemy. This offered an irresistible target to intelligence officers. The messages had naturally been encrypted. But that armour proved easier to crack than signal officers believed. Hundreds of cryptograms were solved, some of which led to tactical victories.