TORONTO (AP) — The Canadian branch of Amnesty International said Monday it was the target of a cyber attack sponsored by China. The human rights organization said it first detected the breach on Oct. 5, and hired forensic investigators and cybersecurity experts to investigate. Ketty Nivyabandi, Secretary General of Amnesty International Canada, said the searches in their systems were specifically and solely related to China and Hong Kong, as well as a few prominent Chinese activists. The hack left the organization offline for nearly three weeks. U.S. cybersecurity firm Secureworks said “a threat group sponsored or tasked by the Chinese…