{"id":186104,"date":"2026-02-10T11:16:00","date_gmt":"2026-02-10T16:16:00","guid":{"rendered":"https:\/\/testing.news-you-need.com\/index.php\/2026\/02\/10\/polish-power-grid-hack-offers-lessons-for-critical-infrastructure-operators-cisa-says\/"},"modified":"2026-02-10T11:20:08","modified_gmt":"2026-02-10T16:20:08","slug":"polish-power-grid-hack-offers-lessons-for-critical-infrastructure-operators-cisa-says","status":"publish","type":"post","link":"https:\/\/testing.news-you-need.com\/index.php\/2026\/02\/10\/polish-power-grid-hack-offers-lessons-for-critical-infrastructure-operators-cisa-says\/","title":{"rendered":"Polish power grid hack offers lessons for critical infrastructure operators, CISA says"},"content":{"rendered":"

Polish power grid hack offers lessons for critical infrastructure operators, CISA says<\/a><\/p>\n

https:\/\/www.cybersecuritydive.com\/news\/cisa-critical-infrastructure-warning-poland-energy-hack\/811819\/<\/a><\/p>\n

Publish Date: 2026-02-10 11:16:00<\/a><\/p>\n

Source Domain: www.cybersecuritydive.com<\/a><\/p>\n

Author: <\/a><\/p>\n

Using an unordered list, summarize the following article with between 4 and 8 key points. <\/p>\n

A recent cyberattack on Poland\u2019s energy grid should put all critical infrastructure operators on notice about the risks of insecure edge devices, the Cybersecurity and Infrastructure Security Agency said on Tuesday.
\nIn an alert highlighting Poland\u2019s report on the December incident \u2014 which nearly crippled power in part of the country during a very cold period \u2014 CISA noted that the hackers initially breached the system \u201cthrough vulnerable internet-facing edge devices\u201d before deploying wiper malware that damaged operational technology.<\/p>\n

\u201cThe malicious cyber activity highlights the need for critical infrastructure entities with vulnerable edge devices to act now to strengthen their cybersecurity posture against cyber threat activities targeting OT\u201d and industrial control systems, said CISA, which last week ordered federal agencies to start disconnecting insecure edge devices.
\nThe attack began in late December, when a threat actor logged into internet-exposed FortiGate security devices that lacked multifactor authentication, likely with reused passwords. From there, they accessed a range of OT control devices using accounts with default login credentials. In some cases, those accounts had permission to modify the devices\u2019 firmware, which let the hackers corrupt the devices\u2019 operating code. In other cases, the hackers deleted essential system files or reconfigured firewall rules to allow further sabotage.
\nThe targeted Polish wind and solar farms used OT control devices from multiple companies, including Hitachi, Mikronika and Moxa, but all of the devices used default passwords.
\nThe resulting sabotage \u201ccaused loss of view and control between facilities and distribution system operators, destroyed data on human machine interfaces (HMIs), and corrupted system firmware on OT devices,\u201d CISA said. \u201cWhile the affected renewable energy systems continued production, the system operator could not control or monitor them by their intended design.\u201d
\nPoland attributed the attack to the Russian government hacker team Berserk Bear, which is housed within Moscow\u2019s Federal Security Service (FSB), while ESET blamed Sandworm, a unit of Russia\u2019s GRU military intelligence agency.<\/p>\n

Takeaways for OT asset operators
\nCISA\u2019s advisory listed several lessons from the incident, including the continuing vulnerability of edge devices, the danger of default passwords and the need to enable firmware verification on OT devices.
\n\u201cOperators should immediately change default passwords and establish requirements for integrators or OT suppliers to enforce password changes in the future,\u201d the agency warned.
\nCISA, along with the Department of Energy\u2019s Office of Cybersecurity, Energy Security, and Emergency Response (CESER), urged critical infrastructure operators to review Poland\u2019s advisory, a recent U.S. fact sheet on OT security and the Energy Department\u2019s own cyber threat advisories.
\nThe British government also used the incident to put the critical infrastructure community on notice.
\n\u201cIncidents like this speak to the severity of the cyber threat and highlight the necessity of strong cyber defences and resilience,\u201d Jonathon Ellison, a senior official at the U.K.\u2019s National Cyber Security Centre, wrote on LinkedIn on Monday. \u201cOperators of UK critical national infrastructure (CNI) must not only take note but, as we have said before, act now.\u201d<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

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