Israeli intelligence officials spying on Russian government hackers found Russians were
using Kaspersky Lab antivirus software that is also used by 400 million people globally, including U.S. government agencies, according to media reports on Tuesday.

An advise by Israeli officials was over 2 years ago that U.S counterparts should be aware of the Russian intrusion. 

However, an order Kaspersky software removed from government computers was only official last month. 

Israeli spies had also found in Kaspersky's network hacking tools that could only have come from the U.S. National Security Agency.

After an investigation, the NSA found that those tools were in possession of the Russian government, the Post said.

And late last month, the U.S. National Intelligence Council completed a classified report that it shared with NATO allies concluding that Russia's FSB intelligence service had "probable access" to Kaspersky customer databases and source code. Accordingly, that access could help enable cyber attacks against U.S. government, commercial and industrial control networks, the Washington Post reported.

National Security Agency and the White House declined to comment, as did the Israeli Embassy, while the Russian Embassy did not respond to requests for comment.

Kaspersky spokeswoman Sarah Kitsos told the Washington Post on Tuesday that "as a private company, Kaspersky Lab does not have inappropriate ties to any government, including Russia, and the only conclusion seems to be that Kaspersky Lab is caught in the middle of a geopolitical fight." She said the company "does not possess any knowledge" of Israel's hack, the Post said.

U.S. intelligence agencies have concluded that Russian President Vladimir Putin ordered a multipronged digital influence operation last year in an attempt to help Donald Trump win the White House, a charge Moscow denies.

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