China hacked Five EU Ministry computers around G20 summit

Chinese hackers broke into computers of the Ministry of Foreign Affairs of five European countries just before the G20 summit in St. Petersburg was held in September.
This appears Tuesday research from U.S. computer security firm FireEye Inc.. Which countries are involved, was not disclosed.
The hackers broke into the computer networks by employees of the ministries should send attachments with titles like 'US_military_options_in_Syria "attracted attention emails. By opening these files, the Chinese were using malware to access data on the computers.