On April 18, 2025, the City of Abilene, Texas, experienced a cyber attack on its computer systems. The attack was discovered when city officials received reports of unresponsive servers on the city’s internal network. In response to the attack, the c...
On November 19, 2023, Fidelity National Financial (FNF), a Fortune 500 company specializing in title insurance and settlement services for the real estate and mortgage industries, discovered a cybersecurity incident that impacted several of its system...
In August 2024, McLaren Health Care, a network of 13 hospitals in Michigan, experienced a significant cybersecurity incident. The incident, which was later confirmed to be a ransomware attack, severely disrupted McLaren's IT and phone systems, leading...
In June 2024, the company experienced a significant cyberattack and data breach. Initially, the LockBit ransomware group claimed responsibility and asserted that they had breached the Federal Reserve. However, it was later confirmed that the compr...
In June 2022, Comstar, LLC, an ambulance billing service, disclosed a data breach impacting approximately 69,000 individuals nationwide. The breach, discovered on March 26, 2022, stemmed from suspicious activity on Comstar's servers, later confirmed a...
In July 2023, the company (a business partner of SSM Health) experienced a data breach that compromised the personal information of some SSM Health patients. The breach occurred due to suspicious activity on the company's network two weeks in July...
In April 2025, the company experienced a cyberattack that severely disrupted its operations. The attack led to the suspension of online orders, caused delays in click and collect services and impacted contactless payment systems across its UK stores. ...
Over the past six months, there has been a significant increase in cyberattacks targeting Hollywood agencies and studios. These attacks involve hackers breaching company networks, stealing sensitive data like films, scripts, and employee information, ...
In June 2021, the company disclosed a data security incident encountered by an IT service provider (Netgain) for another third party (Health Centre Partners of Southern California) that provides a variety of support to the company, including grant-fun...
In February 2025, Lee Enterprises, a major U.S. newspaper chain, experienced a significant cybersecurity event that disrupted its operations. The incident, initially detected on February 3, affected the company's business applications, leading to disr...
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: