BRUSSELS – Hackers last summer raided the emails of EU Council chief Herman Van Rompuy and 10 other senior officials.

The breach was exposed last week by a team of US academics and cyber-security firms which has been tracking a hackers group known by two names – Comment and Byzantine Candor.

The US investigators, who asked to remain anonymous, showed computer logs detailing the hackers’ behaviour to the Bloomberg news agency.

According to the logs, the group accessed the EU Council’s computer network at around 9am Brussels time on four occasions – 8 July, 11 July, 13 July and 18 July last year.

Read more: EUobserver.com