The AMEOS Group, a large healthcare provider operating over 100 hospitals across Europe, experienced a significant cyber security incident that forced the company to shut down its entire IT network. The organization, which is Swiss-owned, detected una...
In July 2025, Dell Technologies confirmed a security breach of its Customer Solution Centers platform, an isolated environment used for product demonstrations and testing. The breach was claimed by the World Leaks extortion group, a rebrand of the Hun...
In June 2023, Knights of Old (KNP), a 158-year-old logistics company, fell victim to a devastating cyber attack orchestrated by the notorious hacking group known as Akira. The breach, as revealed in a BBC Panorama documentary, originated from a single...
In July 2025, Dordt University disclosed a significant data breach that compromised the personal information of 34,251 individuals. The university became aware of suspicious activity on its systems, leading to the discovery that cybercriminals had inf...
A Ukrainian hacking collective known as BO Team, in collaboration with the Ukrainian Cyber Alliance and an unnamed organization linked to Ukraine's Ministry of Defence, claims to have successfully breached and crippled the IT infrastructure of Russia'...
Anne Arundel Dermatology (AAD), a large dermatology provider with over 100 clinics across seven states, experienced a significant data breach between February 14 and May 13, 2025, impacting approximately 1.9 million individuals. Unauthorized access to...
In July 2025, a data breach impacting Zumpano Patricios, P.A., a Florida-based law firm, came to light, affecting the sensitive information of 279,275 patients of healthcare providers who were clients of the firm. The breach, detected on May 6, 2025, ...
In July 2025, WineLab, a prominent Russian alcohol retailer and a subsidiary of the Novabev Group, experienced a significant cyberattack that disrupted its operations, leading to the closure of numerous stores. The parent company, Novabev Group, repor...
In July 2025, the Saudi Arabian industrial services group Rezayat Group, a multi-billion dollar company with 25 subsidiaries operating across engineering, manufacturing, and logistics, was reportedly breached by the Everest ransomware group. The attac...
In July 2025, the City of Gardendale, Alabama, was reportedly targeted by the INC Ransom ransomware group, a ransomware-as-a-service operation. The attackers claim to have exfiltrated nearly 50 GB of sensitive data, encompassing financial records, cus...
Cyber Security Case Studies has worked with a number of groups to develop these risk effect categories which represent a plain-english description of the impacts seen in public cyber events alongside their definition: