Russia's Federal Security Service (FSB) announced earlier today that it had uncovered a U.S. National Security Agency (NSA) plot using previously unknown malware to penetrate specially made backdoor vulnerabilities in Apple iPhones.

The FSB, the main successor to the Soviet-era KGB, said that several thousand Apple iPhones had been infected, including those of domestic Russian subscribers.

The Russian spy agency also said telephones belonging to foreign diplomats based in Russia and the former Soviet Union, including those from NATO members, Israel, Syria and China, had been targeted.

"The FSB has uncovered an intelligence action of the American special services using Apple mobile devices," the FSB said in a statement.

The FSB said the plot showed the close relationship between Apple and the National Security Agency, the U.S. agency responsible for U.S. cryptographic and communications intelligence and security. For more, read the full Reuters Report.

Update June 2, 5:50 am: Reuters reports this morning that Apple denies Russia report. "In a statement, the company said it has "never worked with any government to insert a backdoor into any apple product and never will."

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