- Polish telco confirms massive data breach. From IT News. Poland’s second largest telecoms operator Netia has confirmed that hackers stole large amounts of customer data in an attack last week. The attack was launched on Thursday and impeded access to Netia’s main webpage netia.pl until late in the evening, spokeswoman Lidia Marcinkowska said. She said hackers may have gained access to some of its customer data after they managed to infiltrate two different customer contact forms on Netia’s website.