The Helle Libraries’ library system was targeted by a denial-of-service attack last week. The library system provider Koha-Suomi states the following about the attack:
Starting at 2:20 p.m. on Wednesday, 16 September 2026, our systems were subjected to a large-scale denial-of-service attack. The attack originated from several different countries and began as a UDP flood attack, which later evolved into a UDP reflection attack. The reflection attack was directed at a specific country. We were therefore not the ultimate target of the attack, but rather a party used as an intermediary.
Based on the current situational assessment, and taking into account the scale and target of the attack, we believe that a state actor may be behind it. A more detailed investigation into the incident is still ongoing.
At this stage, the follow-up measures related to the attack do not require any action from libraries or customers.



