Lithuanian authorities are investigating a large data leak that exposes more than 600,000 entries from the country’s national registers, with officials saying they are alert to the possibility of foreign involvement. According to reporting from multiple outlets, the suspected breach affects information held in national register systems and has prompted heightened concern over how the data was accessed and transferred. Lithuanian investigators are focusing on identifying the source of the leak, determining whether the incident resulted from external intrusion, and assessing the scope of any potential misuse of the exposed records. Authorities have not publicly attributed responsibility to a specific country or actor in the provided accounts, but they indicate that the scale of the breach warrants deeper scrutiny. The investigation is ongoing, and officials are working to understand the circumstances of the leak, including the time frame of exposure and any steps that can limit further dissemination. Both sources characterize the situation as a major incident affecting hundreds of thousands of register entries.