Mantas Petrauskas
Author
2026-05-14 12:14 • 3 min read
Educational institutions in the Lithuanian capital, Vilnius, were the targets of a coordinated disinformation campaign on May 13, 2026. The National Public Health Center (NVSC), which operates under the Ministry of Health, has issued an urgent warning regarding fraudulent emails sent to schools and kindergartens falsely claiming an increased threat of hantavirus infections.
Officials confirmed that the NVSC did not author or distribute any such warnings. The campaign appears designed to exploit sensitive public health topics to incite panic among parents and educators while potentially compromising institutional computer networks. While reports have currently only surfaced in Vilnius, authorities have not ruled out the possibility that public sector organizations in other Lithuanian regions may also be targeted.
Security analysis of the fraudulent messages revealed several red flags. The emails were sent from a non-institutional domain rather than the official government system. Furthermore, the structure, tone, and terminology used in the messages did not align with the official administrative standards of Lithuanian state institutions.
The attackers urged recipients to publish the false information immediately on their official websites, an attempt to lend the disinformation credibility through the authority of the schools. However, the primary technical threat lies in an attached PDF document. Cybersecurity specialists warn that such attachments often contain malware designed to steal login credentials, encrypt files for ransom, or provide unauthorized access to internal networks.
The NVSC emphasizes that there are currently no indications of an increased hantavirus threat in Lithuania. While localized outbreaks are occasionally recorded across Europe, the general risk to the public remains very low. Schools have been advised that there is no scientific basis for additional restrictions, disinfection routines, or preventive measures based on the hoax.
Hantavirus is a rare respiratory disease typically contracted by humans through contact with the droppings, urine, or saliva of infected rodents, or by inhaling dust contaminated with these substances. It does not spread easily from person to person in an educational setting. Experts noted that the alarming tone of the fake emails regarding a sudden school-based outbreak was scientifically unfounded and intended solely for emotional impact.
All organizations that receive suspicious emails claiming to be from the NVSC are urged to follow strict security protocols:
* Do not open any attachments or click on links within the message.
* Do not reply to the sender.
* If the information has already been shared on internal channels or social media, issue an immediate retraction.
* Report the incident to the police and the National Public Health Center.
Lithuanian law enforcement and cybersecurity agencies are currently investigating the incident as a breach of cybersecurity and a deliberate spread of disinformation. Residents and administrators are encouraged to verify all health-related alerts through official government portals, such as nvsc.lrv.lt.
Is there a hantavirus outbreak in Vilnius schools?
No. The National Public Health Center (NVSC) has confirmed that the reports are fake and part of a disinformation campaign. The epidemiological situation remains stable.
What should I do if I receive a suspicious health alert email?
Do not open any attachments or links. Verify the information on the official NVSC website (nvsc.lrv.lt) and report the email to the police.
How is hantavirus actually spread?
It is a rare disease spread through contact with infected rodent droppings or urine. It does not typically spread from person to person in school environments.