The agency said, "The risk that the Russian government, whether acting on its own or in collaboration with Kaspersky, could capitalise on access provided by Kaspersky products to compromise federal information and information systems directly implicates US national security.”
Company founder Eugene Kaspersky pinned the ban on politics. "When politics use the news to shape facts, no one wins," he tweeted.
Kaspersky Lab issued a statement expressing disappointment with the directive. “Given that Kaspersky Lab doesn't have inappropriate ties with any government, the company is disappointed with the decision by the US Department of Homeland Security (DHS), but also is grateful for the opportunity to provide additional information to the agency in order to confirm that these allegations are completely unfounded."
The statement said, "No credible evidence has been presented publicly by anyone or any organisation as the accusations are based on false allegations and inaccurate assumptions, including claims about the impact of Russian regulations and policies on the company. Kaspersky Lab has always acknowledged that it provides appropriate products and services to governments around the world to protect those organisations from cyber-threats, but it does not have unethical ties or affiliations with any government, including Russia."
The scrutiny and speculation that has long dogged Kaspersky has become increasingly intense as focus has been trained on Russia's interference in the US presidential election.
"But hopefully cooler heads will prevail before this becomes a Cold War-style commercial sanctions battle," said Leichter. "Further Balkanising the internet runs contrary to the global cooperation needed to make cyber-security successful."