Cyberattack at Czech Institute of Nuclear Research Did Not Threaten Reactor Operations

April 6, 2023


The Institute of Nuclear Research Řež was attacked by a hacker group. It only attacked economic systems, which caused, for example, a delay in sending wages. The technological systems remained intact, the operation of the reactors was not threatened by the attack.

Hackers penetrated the institute's internal system using the Ransomware program, which blocks the computer system and encrypts the data stored in it. It demands a ransom from the user for data recovery.

Incident Date

December 12, 2022

Estimated Cost

No cost values disclosed.

Type of Malware

No Malware identified

Threat Source

No threat source identified