What MI5 Actually Does, and What Spy Fiction Gets Wrong

MI5 can't arrest anyone, employs more than 5,000 people and names only one of them. What the Security Service does, and why Sarah Sterling is an MI5 officer.

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What GCHQ Actually Does, and Why The Lost Key Isn't Science Fiction

A stolen simulation drive isn't a weapon. It's the map of every vulnerability someone already found, and that's what makes the threat in The Lost Key real.

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The Insider Problem

Most security budgets point outward. The bigger risk is usually already inside, holding a key you handed over yourself.

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The series isn't over

A few people have asked since The Ghost Key came out: is that it? Is the trilogy finished? No, and here's what happens next.

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How not to be followed

Belfast taught me most of what I know about surveillance detection. The same discipline that kept me clean in the field now runs through every route James O'Neill walks in The Lost Key.

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Is the tradecraft in British spy fiction actually real?

Most spy thrillers get it wrong. Not dishonestly — the writers are skilled, the research is genuine — but the version of intelligence work that fills most fiction is built from other fiction. Here is what the genre gets right, what it consistently gets wrong, and why it matters to readers.

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