By this time, Urtubia's falsification of documents had begun and no guerrilla or exile left him without false papers. He united with other anarchist companions to forge currency in the 1960s. With this strategy they financed numerous groups while attempting to destabilize the capitalist economy. With these activities, in the heat of the Bay of Pigs Invasion, Urtubia proposed to Simeón Rose, the ambassador of Cuba in France, to destroy American interests in France using explosives. This offer was refused, nevertheless. He then presented Ernesto Che Guevara, the Cuban Minister of Industries and President of the Central Bank of Cuba, with a plan for the massive forgery of American dollars. This proposal was likewise rejected and Urtubia left the meeting disillusioned.