Maximator (named after a type of beer from the German brewery Augustiner-Bräu) is an alliance between the secret services of Denmark, France, Germany, the Netherlands, and Sweden, comparable to the Five Eyes.
Only certain details from the Dutch arm and associated groups have been published, but one of their most important tools for reconnaissance and decryption was the sale of encryption devices that had been compromised (backdoored).
From the 1970s to the 2010s, one method involved Crypto AG, a supposedly private Swiss company secretly owned by the German BND and the American CIA.
[2] So far, only some activities by the Dutch arm, Technisch Informatie Verwerkingscentrum [nl] (TIVC), are publicly known, mostly providing administrative assistance to the GCHQ, a British organization, during the Falklands War in decoding of Argentine radio traffic.
At the urging of the CIA, the sale of compromised encryption devices from the Dutch company Philips to Turkey was enforced against the will of the Bundesnachrichtendienst (BND), Germany's foreign intelligence agency, and the TIVC.