How GCHQ, the UK's intelligence service, has adapted to evolving tech and security threats and the challenges in recruiting and retaining its ~6,000 staff (David Bond/Financial Times)

David Bond / Financial Times:
How GCHQ, the UK's intelligence service, has adapted to evolving tech and security threats and the challenges in recruiting and retaining its ~6,000 staff  —  Five years ago, Rob, a 38-year-old father of two, was fitting kitchens and bathrooms for a living.  Now he is a digital spy.