Deputy Prime Minister Krzysztof Gawkowski, who also serves as digital affairs minister, would not disclose which city was targeted or who was behind the intrusion the previous day.
"At the last moment, when the attack began, our services detected it and shut everything down," Gawkowski told the onet.pl news outlet.
"We managed to prevent the attack," he added.
He also said in the interview that Poland thwarts 99 percent of attempted cyberattacks.
"We are developing our capabilities, and thanks to the excellent cooperation between military and civilian services, we are effectively repelling attacks," Gawkowski said. "However, 99 percent is still not 100 percent—a 'soft underbelly' can always emerge. Most critical infrastructure is in the hands of local governments, which is why we are directing special support there."
Officials have said Poland’s role as a hub for aid to Ukraine makes it a target for Russian cyberattacks and sabotage, the Reuters news agency reported.
Gawkowski has previously described Poland as Russia’s "main target" among NATO countries.
In October, Gawkowski said that Poland would allocate nearly PLN 10 billion (EUR 2.3 billion, USD 2.7 billion) to cybersecurity and digital infrastructure in 2025 and 2026.
In June last year, Gawkowski announced a EUR 700 million effort to develop a "national cybersecurity shield," saying that Poland was taking significant steps to enhance its cybersecurity against rapidly increasing Russian cyberattacks.
Gawkowski said earlier last year that Poland was "in a state of cyber Cold War with Russia."
(gs)
Source: onet.pl, Reuters, PAP