Incident: DDos on 12/01/2025

Dear Market Participants,

We are writing to provide you information regarding the incident that occurred on Sunday 12th of January.

This incident was caused by a type of cyberattack called Distributed Denial of Service (DDoS) targeting a full range of IP addresses used by our IT infrastructure service provider.

JAO was not directly targeted as such but impacted as a consequence. This was leading to intermittent service disruptions during the attack window. Our service provider promptly reacted, took the necessary measures and restored their service within an hour.

The availability of affected services was compromised for approximately one hour from 13:20 to 14:20.  

An incident report summarizing this incident is being drafted and will be published.  

Kind regards,

JAO Operations