Security News > 2023 > November > Danish energy sector hit by a wave of coordinated cyberattacks

The Danish energy sector has suffered what is believed to be the most extensive cyberattack in Danish history, according to SektorCERT. Danish energy sector under attack.

From this vantage point, in May 2023, they detected three waves of attacks targeting companies in the energy sector.

The attackers gained control of the devices at 11 companies and had access to the critical infrastructure behind it, SektorCERT says.

The interesting thing is that the attackers knew exactly which companies to hit.

SektorCERT researchers believe that, during the second wave, the attackers also exploited two new vulnerabilities that Zyxel disclosed and patched a few days later.

A series of additional attacks went on until May 24, when SektorCERT has been alerted of network traffic to one of the compromised organizations coming from an IP previously used by the Sandworm APT, which has been known to target the Ukrainian energy grid for many years.

News URL

https://www.helpnetsecurity.com/2023/11/14/danish-energy-sector-cyberattack/