Cerar said that the Public Administration Ministry regularly upgraded IT systems and other software, while a specialised national authority had been established this year to prepare preventive measures against such attacks.

"Ensuring security in this field is one of the government's priorities," he stressed.

Friday's cyberattack was also on the agenda of today's session of the parliamentary Defence Committee, whose chair Jan Mahnič of the opposition Democrats (SDS) said that relevant services said they only knew about the attack on Revoz and not eight attacks as media reported.

However, "I can say that an attack on Friday on the UKC [Ljubljana] hospital and several other healthcare institutions that were also targeted in Slovenia was successfully deflected by certain defence mechanisms we have", the MP added.

While Slovenia is establishing cybersecurity infrastructure, Mahnič criticised the coalition for "not understanding the importance of cybersecurity".

Meanwhile, the Security Council also discussed the terrorist threat level, which "remains unchanged...at two on a scale from one to five", the prime minister noted after the session.

However, Cerar pointed to the unpredictable international situation, which can lead to rapid changes in the threat level. The government and other responsible institutions remain vigilant, he added.

Slovenian police are monitoring the Mediterranean migrations route, but "there seems to be no major inflow of migrants at the moment".

Cerar added that the deal between the EU and Turkey was firm and that there were no indications to the contrary. However, criminal enterprises continue trafficking people.

Another point on the agenda was the upcoming NATO summit in Brussels on 25 May. The prime minister will attend the summit on strengthening the alliance, its role in the fight against terrorism and defence budgets in member states.

"Slovenia has already fulfilled two out of three decisions of the Wales NATO summit with regards to increasing defence spending to 2% of GDP," he said.