An employee of Kaspersky Lab works on computers at the company's headquarters in Moscow. Worries rippled through the consumer market for antivirus software after the U.S. government banned federal agencies from using Kaspersky Lab software on Wednesday, Sept. 13, 2017.
An employee of Kaspersky Lab works on computers at the company's headquarters in Moscow. Worries rippled through the consumer market for antivirus software after the U.S. government banned federal agencies from using Kaspersky Lab software on Wednesday, Sept. 13, 2017. Pavel Golovkin AP
An employee of Kaspersky Lab works on computers at the company's headquarters in Moscow. Worries rippled through the consumer market for antivirus software after the U.S. government banned federal agencies from using Kaspersky Lab software on Wednesday, Sept. 13, 2017. Pavel Golovkin AP