Since the day Castro marched into Havana, Cuba has been a satellite of the Soviet Union and after 1991, China and Russia. Their intelligence service is a subsidiary of Chinese and Russian intelligence. Communist countries are characteristically economic basket cases. Our embargo of Cuba has added to the dilemma Cuba faces. However, that does not mean that Cuban intelligence and subversion are not active in our country. China and Russia likely provide much of their funding.
The only concern I have about Secretary of State Rubio's statement is that he did not address the interconnectivity among Communist, ex-Communist, and radical Islamist nations to subvert and defeat the United States and the Western democracies.