"The attack lasted for a few minutes and was successfully tackled by the bank's security systems. The only thing that was affected by the denial-of-service attack was our website," the official said, declining to be named.
Anonymous originated in 2003, adopting the Guy Fawkes mask as their symbol for online hacking. The mask is a stylised portrayal of an oversized smile, red cheeks and a wide moustache upturned at both ends.
"Olympus will fall. A few days ago we declared the revival of operation Icarus. Today we have continuously taken down the website of the Bank of Greece," the group says in a video on You Tube.
"This marks the start of a 30-day campaign against central bank sites across the world."
© Thomson Reuters 2016
For details of the latest launches and news from Samsung, Xiaomi, Realme, OnePlus, Oppo and other companies at the Mobile World Congress in Barcelona, visit our MWC 2026 hub.
Tecno Pop X Launched in India With 5,000mAh Battery, IP64 Rating: Price, Specifications