Jon Cosson

Near Thornton-le-Dale, North Yorkshire

God’s own country, not God’s waiting room

I am Jon Cosson. I spent four decades in IT & cyber security leadership, chaired a financial industry cyber security committee, and now speak about the history of code-breaking and about staying safe online. These days I live on the edge of the North York Moors, keep five old cars on the road, and write reference guides that I give away.

This site is a record of retirement taken seriously: an interesting life, a beautiful part of England, and cars driven rather than polished.

More about me

Jon Cosson

What I spend the time on

Speaking

Talks on the history of code-breaking and on staying safe online, at Bletchley Park and further afield: Chicago, Los Angeles, San Francisco, New York, Washington, Copenhagen, Paris, and all around the UK.

Five old cars

An MG T-Series, a Triumph Stag, an AC Aceca, a Jaguar Mk2 and an Alfa Romeo Giulia Spider. All of them used, on moor roads, in most weathers.

Writing guides

Reference material on those cars, on Thornton-le-Dale and on the moors around it. Free to read, with nothing asked in return.

The guides I write and give away

Each of these is a plain reference site, written slowly and kept accurate. None of them sells anything.