Microsoft has restricted access to certain technologies for Israel's military intelligence Unit 8200 - an elite unit responsible for clandestine operations, especially collecting signal intelligence (SIGINT), along with counterintelligence, cyberwarfare, and surveillance. Via ReutersA sophisticated surveillance system was erected by Israeli intelligence reportedly using Microsoft's infrastructure to collect data from millions of phone calls made daily by Palestinians across the West Bank and Gaza. "We do not provide technology to support mass surveillance of civilians. The company, which shared few details of its findings, said its policies prohibit its technology’s use to facilitate mass surveillance of civilians. However, the company has made clear that it will continue to support Israel's cyber-defense efforts and other services which don't involve mass surveillance.