By Joseph Menn SAN FRANCISCO (Reuters) – A private U.S. cybersecurity company on Monday accused a unit of China’s military of conducting far-reaching hacking operations to advance the country’s satellite and aerospace programs. Security company CrowdStrike said Shanghai-based unit 61486 of the People’s Liberation Army 12th bureau has attacked networks of Western government agencies and defense contractors since 2007. CrowdStrike said the hacking targeted the U.S. space, aerospace and communications sectors. CrowdStrike said it was publicizing a report previously sent to clients to show that the issue was broader than many realize.