Poland's foreign ministry said in a statement on Monday that it supported the joint EU and NATO condemnation of Russian cyber operations and urged Moscow to cease such activities.
The ministry said the EU had identified the Russian Federal Security Service's (FSB) 16th Centre as being responsible for a broad campaign of cyber operations targeting government and diplomatic institutions in EU member states, as well as the defence, energy, research, innovation and education sectors.
According to the Polish foreign ministry, Russia uses a network that includes intelligence agencies, cybercriminals, self-described hacktivist groups and private companies to conduct disruptive cyber operations and influence campaigns aimed at destabilizing decision-making processes in EU and NATO countries.
Poland also voiced full support for new EU cyber sanctions adopted in response to the alleged attacks.
"For the first time on such a broad scale, these sanctions target not only individuals but also a wide range of entities involved in conducting malicious cyber operations," the Polish foreign ministry said, describing the measures as a response to "malicious actions violating international law as well as established norms of responsible state behaviour."
The ministry said Poland would continue working with its allies to protect critical infrastructure, strengthen cyber resilience and cyber defence, and use diplomatic tools to publicly attribute and respond to cyberattacks.
Earlier on Monday, EU member states, in a statement issued by the bloc's foreign policy chief Kaja Kallas, condemned what they called Russia's long-running and increasingly aggressive cyber campaign against the EU, its member states and partners, particularly Ukraine, Polish state news agency PAP reported.
The EU said the FSB's 16th Centre has conducted cyber espionage against strategic government targets in France since 2010 and has targeted the French defence industry since 2025.
It also accused the unit of targeting government institutions in Germany and carrying out disruptive sabotage operations against critical infrastructure in Poland, including combined heat and power plants.
The EU announced sanctions against nine individuals and four entities, including officers of Russia's GRU military intelligence service, hackers, cybercriminals and private companies accused of supporting Russian cyber operations.
France's Foreign Minister Jean-Noël Barrot said on Monday that Russia's ambassador would be summoned over cyberattacks targeting France and other European countries, including Poland.
Germany's foreign ministry also said it had summoned the Russian ambassador over what it described as unacceptable Russian cyberattacks against Germany, other EU countries and Ukraine, the PAP news agency reported.
Britain separately announced a new package of sanctions targeting individuals and entities linked to Russian cyber and hybrid operations, accusing Moscow of seeking to spread chaos, destabilise Europe and deepen divisions across the continent.
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Source: IAR, PAP, consilium.europa.eu, nato.int