Among the strengths of the Cuban intelligence service is its ability to recruit Americans who are motivated by ideological reasons, rather than by financial gain. The Cubans have historically approached Americans at a young age, usually at universities in the United States or other countries in the Americas. They cultivate those relationships by employing strategic patience that pays off many years —even decades— later. By recruiting ideological sympathizers, the Cubans rarely need to pay their agents large amounts of money, as the cases of Defense Intelligence Agency analyst Ana Belén Montes and State Department diplomat Manuel Rocha suggest. Many Cuban agents enter military service in the United States, which means they acquire Secret or Top-Secret clearances. Others are instructed to penetrate anti-communist groups of Cuban-Americans in southern Florida, according to The Wall Street Journal.

The U.S. counterintelligence strategy prioritizes Russia and China, which means that Cuban intelligence operations are treated as “an afterthought,” claims the paper. The Federal Bureau of Investigation (FBI), America’s primary counterintelligence agency, dedicates relatively few resources to investigating Cuban intelligence. Its efforts are chronically “understaffed and outmatched” by Havana, according to former counterintelligence officers who spoke to The Wall Street Journal. The paper notes that the FBI is often aware of several dozen cases of “actual or potential” Cuban agents operating in the U.S. However, it routinely lacks the requisite resources to investigate them.