text:  The Russian cybersecurity company Kaspersky says it's withdrawing from the U.S. and closing its office in Massachusetts. For years, the U.S. has warned against the risks of using software from Kaspersky because it can potentially scan computers around the world and steal sensitive data. The U.S. government had already banned its security products on federal networks and last month barred the sale of any new products from the Moscow-based company. You're listening to NPR News.