The FBI interviewed at least a dozen employees of Russia-based cybsersecurity firm Kaspersky Lab as part of a counter-intelligence probe, NBC News reported.
Employees were told they weren't targets, merely just sources of information about the operations of the company, NBC reported.
Kaspersky Lab's products are widely used in the U.S. despite the company's Russian origins, NBC reported.
Billionaire firm owner Eugene Kaspersky has ties to Russian intelligence officials and graduated from the KGB's Institute of Cryptography, Telecommunications and Computer Science, NBC reported.
"The company has never helped, nor will help, any government in the world with its cyberespionage efforts," Kaspersky Lab said in a statement to NBC.
"The company has a 20-year history in the IT security industry of always abiding by the highest ethical business practices, and Kaspersky Lab believes it is completely unacceptable that the company is being unjustly accused without any hard evidence to back up these false allegations.
"Kaspersky Lab is available to assist all concerned government organizations with any ongoing investigations, and the company ardently believes a deeper examination of Kaspersky Lab will confirm that these allegations are unfounded," Kaspersky Lab said, NBC reported.