Su Bin, a Chinese businessman with permanent residence in Canada, has been accused of helping two hackers based in China steal documents from the systems of US aerospace companies with defense contracts.Also known as Stephen Su and Stephen Subin, the businessman had been arrestedon June 28, 2014, in British Columbia.He has been indicted by the US District Court for the Central District of California with unauthorized computer access, conspiracy to commit theft of trade secrets and aiding…