Even though the operator gave indications that he was compromised, the receiver in Britain did not notice. Thus the Germans were able to penetrate the Dutch operation and maintained this state of affairs for two years, capturing agents, and sending false intelligence and sabotage reports until the British caught on. In Bodyguard of Lies Anthony Brown suggests that the British were well aware that the radios were compromised and used this method to feed false information to the Germans regarding the site of the D-Day landings.[45]