Deutsche Bahn
February 13, 2026
•[ denial-of-service, DDoS, service outage ]
German reporting relayed statements attributed to Germanys BSI leadership describing a massive cyberattack against Deutsche Bahn that overwhelmed systems with exceptionally high request volumes and caused outages to services such as booking. The report characterized the attack as unusually large in scale, consistent with a major denial-of-service event impacting digital service availability. The reporting accessible here does not describe data theft; the primary effect is disruption to online service functionality due to traffic overload.
Dresden State Art Collections
January 21, 2026
•[ targeted cyberattack, operational disruption, digital infrastructure ]
The Record reported that Dresden State Art Collections discovered a targeted cyberattack on Wednesday (January 21, 2026) that disrupted significant parts of its digital infrastructure. The state of Saxonys culture ministry said the museum network had limited digital and phone services, with online ticket sales, visitor services, and the museum shop unavailable. On-site payments were restricted to cash, though tickets purchased online before the incident could still be scanned, and the museums remained open. The ministry stated security systems protecting the collections were not affected and physical/technical security remained intact, indicating the primary impact was operational disruption of public-facing digital services rather than compromise of collection security systems.
Kyowon Group
January 14, 2026
•[ ransomware, service outage, data exfiltration ]
Kyowon Group, a large South Korean conglomerate with major education/publishing and digital services operations, confirmed a ransomware incident after initially describing a suspected attack that caused service outages. In a follow-up update, the company stated the incident occurred in January around 10 a.m. and that an attacker exfiltrated data from its systems. Reporting cited Korean media indicating the event may have impacted a substantial portion of Kyowons infrastructure (roughly 600 of 800 servers) and that there are millions of registered accounts, though Kyowon said it was still determining whether stolen data included customer information. The company said it notified relevant authorities (including KISA), engaged security experts, and worked to restore services while conducting a detailed investigation into scope and data exposure.
Cellcom
May 14, 2025
•[ cyberattack, service outage ]
Cellcom confirmed a cyberattack caused widespread service outages impacting voice and SMS for customers in Wisconsin and Upper Michigan.
Centre des technologies de l’information de l’État' (CTIE)
January 10, 2025
•[ DDoS attack, service outage, government websites ]
Mehrere von der Regierung betriebene und vom Centre des technologies de linformation de ltat (CTIE) gehostete Internetseiten waren am Freitag zwischen 13:05 und 14:55 Uhr nicht erreichbar. Ursache dafr war eine DDOS-Attacke, die zahlreiche Webseiten lahmlegte, darunter men.public.lu und 112.public.lu. Das besttigte eine Sprecherin des CTIE gegenber dem Tageblatt. Der Angriff habe kurz nach 13 Uhr...
