Hackers threaten Greek banks, demand ransom in bitcoins
“Greek authorities have created a special team to protect Greek banks from a team of hackers who have allegedly threatened to bring down the lenders’ electronic systems if they do not pay a ransom.
Kathimerini understands that the group, called Armada Collective, has threatened a Distributed Denial of Service (DDoS) attack unless they are paid a ransom in bitcoins.
The hackers caused the online banking systems of three Greek lenders to briefly stop working on Thursday, sources said. They said that if they are not paid by Monday, November 30, they would cause more severe disruption.”