Near Thornton-le-Dale, North Yorkshire
God’s own country, not God’s waiting room
I am Jon Cosson, an East End boy from Hackney Wick. I spent four decades in IT and cyber security leadership. I am an international speaker and blogger, and I chaired a financial industry cyber security committee. I 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 classic 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.

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. The scams talk and the advice that goes with it are under Staying safe.
Five old cars
A Jaguar E-Type Series 1, a Jaguar Mk2 restomod, an MG TF1500, an AC Aceca-Bristol and a Triumph Stag. All of them used, on moor roads, in most weathers.
Writing guides
Reference material on classic 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
Six classic car archives and two local guides to the villages and moorland of the North York Moors. Each is a plain reference site, written slowly, with sources named and corrections published. None of them sells anything.
- MG T-Series
TA to TF ownership, servicing and identification. mgtseries.com
- Triumph Stag
the alloy V8 and how to live with it. triumphstag.org
- AC Aceca
the Bristol-engined coupé, with a chassis registry. acaceca.com
- Jaguar E-Type
identification, the engineering and what keeping one on the road involves. jaguaretype.org
- Jaguar Mk2
the saloon and its running gear. jaguarmk2.com
- Alfa Romeo Giulia Spider
the twin-cam open car. giuliaspider.com
- Thornton-le-Dale
the village and its history. thorntonledale.org
- The Yorkshire Moors
walks, roads and villages. yorkshiremoors.com