Greece's central bank became the target of a cyber attack by activist hacking group Anonymous on Tuesday which disrupted service of its website, a Bank of Greece official said on Wednesday.
"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 stylized portrayal of an oversized smile, red cheeks and a wide mustache 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."