ABN Amro and ING said they were both targeted by hackers, temporarily disrupting online and mobile banking services over the weekend.
The tax office said its website went down for 5-10 minutes after a DDoS attack.Rabobank also fell victim to an attack on Monday. In Distributed Denial of Service (DDoS), attackers use computer networks they control to send such a large number of requests for information from websites that servers that host them can no longer handle the traffic and the sites become unreachable. (Reporting by Anthony Deutsch; Editing by Toby Chopra)