Russia’s growing aggression toward the United States has deepened concerns among U.S. officials that Russian spies might try to exploit one of the world’s most respected cybersecurity firms to snoop on Americans or sabotage key U.S. systems... Products from the company, Kaspersky Lab, based in Moscow, are widely used in homes, businesses and government agencies throughout the United States, including the Bureau of Prisons. Kaspersky Lab’s products are stocked on the shelves of Target and Best Buy, which also sells laptops loaded by manufacturers with the firm’s anti-virus software. But in a secret memorandum sent last month to Director of National Intelligence Dan Coats and Attorney General Jeff Sessions, the Senate Intelligence Committee raised possible red flags about Kaspersky Lab and urged the intelligence community to address potential risks posed by the company’s powerful market position. “This [is an] important national security issue,” declared the bipartisan memorandum... In February, the Department of Homeland Security issued a secret report on the matter to other government agencies. And the FBI is investigating the nature of Kaspersky Lab’s relationship to the Russian government... The company has repeatedly insisted it poses no threat to U.S. customers and would never be used as a government tool. Current and former U.S. officials, however, point to company executives who previously worked for Russian intelligence and military agencies. They worry that Kaspersky Lab’s software could allow state-sponsored hackers to steal users’ files, read private emails or attack critical infrastructure in the United States.