I’m sure most of the boys and girls at GCHQ think they’re good guys and gals but I see them with at best grey hats.
Actually TBH I think almost all of them are white hats.
Unfortunately, they work in a dark environment with dark stuff and shady characters, and that darkness stains their hats to the point they wouldn't even recognise themselves if they looked in the mirror - in fact many probably think there's a portrait in their bathrooms of their darkest enemy, not ever even contemplating it's a mirror :)