VILNIUS. July 20 (Interfax/BNS) - The Lithuanian National Crisis Management Center (NKVC) has confirmed to the Baltic News Service that the potential leak of data about the NATO summit made public last week was caused by the hacking of Lithuania's government systems.
"Police are continuing a pretrial investigation, and therefore, I cannot comment on it. However, the extent of this problem is likely to be greater than originally thought," NKVC chief Vilmantas Vitkauskas said.
"Indeed, a cyber-incident was recorded, but the extent of the damage has yet to be determined," he said.
"Certain weaknesses and vulnerabilities in the systems were exploited," he said.
The chancellor of the Lithuanian government has requested that the Commission for Secrets Protection Coordination assess the authenticity and sensitivity of the published documents, he said.
"The institutions whose documents were made public have been asked to evaluate whether they have been disclosed fully or partially, with some falsification involved," Vitkauskas said.
The NATO summit in Vilnius took place on July 11-12.
Posts that appeared on Telegram at the end of the NATO summit suggested a data leak concerning the event's organization had taken place.
The information that has been made public includes about 30 documents, among them the names of the hotels where the heads of state and delegations stayed, the time of their arrival at the airport, the names of the leaders' bodyguards, the types of firearms they carried, and details of communication systems.
They also publicized the names of snipers from the Lithuanian police's antiterrorist operations unit ARAS, the minutes of the security team's meetings in the run-up to the summit, and decisions being planned at the time on restricting access to airspace, traffic, and transit from Russia and Belarus.