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22 Energy Firms Hacked in Largest Coordinated Attack on Denmark’s Critical Infrastructure
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<blockquote data-quote="Viking" data-source="post: 1065362" data-attributes="member: 812"><p><strong><em>Hackers potentially linked to Russia’s military intelligence carried out a series of highly coordinated cyberattacks on Danish energy infrastructure in the spring, a new report says.</em></strong></p><p></p><p>SektorCERT, a non-profit cybersecurity center for critical sectors in Denmark, said in the report that it was the nation’s largest cyber incident on record.</p><p></p><p>According to SektorCERT’s experts, attackers gained access to the systems of 22 companies overseeing various components of Denmark’s energy infrastructure in May 2023.</p><p></p><p>In the worst-case scenario, more than 100,000 people in Denmark could have been left without electricity or heating – if the hackers had chosen to turn off power from the infrastructure they had gained control of.</p><p></p><p>Fortunately, the attack was quickly discovered – security holes were closed, and the companies’ customers were not affected. Still, several companies had to go into island mode (off-grid) operation to isolate their systems and prevent the spread of the attack.</p><p></p><p>“The attackers knew in advance who they were going to target and got it right every time. Denmark is constantly under attack. But it is unusual that we see so many concurrent, successful attacks against the critical infrastructure,” SektorCERT said.</p><p></p><p>The report (<a href="https://sektorcert.dk/wp-content/uploads/2023/11/SektorCERT-The-attack-against-Danish-critical-infrastructure-TLP-CLEAR.pdf" target="_blank">PDF</a>) says that zero-day vulnerabilities in Zyxel firewalls used by many Danish infrastructure operators to protect their networks were exploited. Most of the attacks were possible because the companies had not updated their firewalls, said SektorCERT.</p><p>[URL unfurl="true"]https://cybernews.com/news/denmark-cyberattack-energy-infrastructure-sandworm/[/URL]</p></blockquote><p></p>
[QUOTE="Viking, post: 1065362, member: 812"] [B][I]Hackers potentially linked to Russia’s military intelligence carried out a series of highly coordinated cyberattacks on Danish energy infrastructure in the spring, a new report says.[/I][/B] SektorCERT, a non-profit cybersecurity center for critical sectors in Denmark, said in the report that it was the nation’s largest cyber incident on record. According to SektorCERT’s experts, attackers gained access to the systems of 22 companies overseeing various components of Denmark’s energy infrastructure in May 2023. In the worst-case scenario, more than 100,000 people in Denmark could have been left without electricity or heating – if the hackers had chosen to turn off power from the infrastructure they had gained control of. Fortunately, the attack was quickly discovered – security holes were closed, and the companies’ customers were not affected. Still, several companies had to go into island mode (off-grid) operation to isolate their systems and prevent the spread of the attack. “The attackers knew in advance who they were going to target and got it right every time. Denmark is constantly under attack. But it is unusual that we see so many concurrent, successful attacks against the critical infrastructure,” SektorCERT said. The report ([URL='https://sektorcert.dk/wp-content/uploads/2023/11/SektorCERT-The-attack-against-Danish-critical-infrastructure-TLP-CLEAR.pdf']PDF[/URL]) says that zero-day vulnerabilities in Zyxel firewalls used by many Danish infrastructure operators to protect their networks were exploited. Most of the attacks were possible because the companies had not updated their firewalls, said SektorCERT. [URL unfurl="true"]https://cybernews.com/news/denmark-cyberattack-energy-infrastructure-sandworm/[/URL] [/QUOTE]
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