Ex-GCHQ chief: No company should be offline for weeks after cyberattack Tech No vigilant company should need to go offline for more than a few days after a cyberattack, the former director of GCHQ has said in comments that will pile fresh scrutiny on Jaguar Land Rover’s (JLR) preparedness before its hack left production at a standstill for over a month. Robert Hannigan, who ran the UK [...]