Czech National Bank is the target of a cyber attack

On the morning of Friday 1 September, the Czech National Bank faced a targeted DDoS (Distributed Denial of Service) attack, which may cause the CNB website to slow down or become unavailable. The attack has not affected any internal information systems and no data have been breached.

The CNB is in contact with the National Cyber and Information Security Agency, which has provided maximum possible cooperation to resolve the situation. If the website becomes unavailable, the CNB will use its official X (Twitter) profile for communication with the public.

DDoS is a form of cyber attack in which attackers attempt to make a website, network or another online service unavailable by overloading it with a large amount of false requests until there is a drop in performance, or partial or complete outage.

Petra Krmelová
Director of the Communications Division and CNB Spokesperson