More on leak technology.

Here is SpyBlog on an earlier example, asking rather shrilly how it is possible that a civil servant can walk out of a key British Government building carrying a sensitive Secret document.

Well, it’s simple. Short of strip-searching all employees every day as they leave the building, how might that sort of thing be prevented?

We assume that our people can be trusted. Lapses happen, but it works best in the long run.

A determined or even obsessive leaker can find a way.

Take the case of Vasili Mitrokhin, all-time World Champion Leaker.

For years he made manuscript notes of KGB documents, tore them up, hid the pieces in his socks, walked home, then typed the notes up using home-mde ink in his dacha, hiding some 25,000 documents thus recorded under the floorboards and waiting for a chance to pass them on.

Which he finally did, when the Cold War ended. To us! the Americans did not believe his story.

Any ideas on how to prevent someone doing that?