In May 2023, the company disclosed that a third party accessed their systems without authorization. They took immediate measures to mitigate the incident, including collaborating with the Federal Bureau of Investigation and employing a reputable fore...
In July 2024, the company publicly confirmed that it had experienced a cybersecurity incident in June 2024. The incident, later confirmed to be a ransomware attack by the RansomHub group resulted in a data breach that impacted 2.2 million customer...
AultCare Corporation experienced a data breach that was discovered on September 25, 2024, potentially exposing sensitive personal information of its clients. The breach occurred due to unauthorized access to an employee's email account and SharePoint ...
Eckert & Ziegler SE, a company listed on the TecDAX, experienced a cyber attack on portions of its IT systems. In response to the attack, the affected systems were temporarily taken offline and disconnected from the internet to limit potential damage....
A significant data breach occurred at the Canada Border Services Agency (CBSA) in February 2025 due to an employee error, impacting approximately 18,000 employees. On February 3rd, an employee extracted a large data file from a mainframe system to gen...
The Rainbow District School Board experienced a cyber attack on February 7, 2025, resulting in the theft of sensitive personal information belonging to staff, students, and parents/guardians dating back to 2010. The stolen data includes social insuran...
Prizm Media, Inc. experienced a data breach that resulted in the compromise of sensitive personal and protected health information of numerous individuals. The breach occurred between April 28, 2023, and July 4, 2023, when an unauthorized third party ...
Appomattox County Public Schools and Appomattox County experienced a cybersecurity incident that impacted county and school networks. Upon discovery, outside cybersecurity experts were brought in to assess and resolve the situation. The incident forc...
The Upper Canada District School Board (UCDSB) has recovered from a cyberattack that disrupted operations for seven weeks. The attack, which occurred sometime before January 22, 2025, caused significant disruption to the school board's systems, leadin...
HCRG Care Group, a large provider of community health and care services in the United Kingdom, has experienced a cybersecurity breach. The Medusa ransomware group claims to have exfiltrated over two terabytes of data from HCRG, including sensitive per...
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: