Essex NHS Trust/Synnovis
Thousands of NHS patient records stolen in ransomware cyberattack on Mid South Essex Foundation Trust
Hospitals, clinics, insurers, and medical-IT vendors are the highest-value targets in cybercrime. Below is every healthcare-sector breach LeakTrace has indexed — patient records, HIPAA disclosures, ransomware victims, and supply-chain compromises.
Thousands of NHS patient records stolen in ransomware cyberattack on Mid South Essex Foundation Trust
Cybersecurity incident with limited sensitive information compromised
Thousands of NHS patient records stolen in ransomware cyberattack
Data breach exposes 42 million customer records; ShinyHunters extortion group threatened release
177,860 records exposed — Device information, Email addresses, IP addresses, Passwords and 2 more
Ransomware attack stole thousands of patient records in major healthcare cyberattack
Publicly exposed database leaked 24 billion stolen credentials, one of largest credential compilations
Student records accidentally leaked in second breach within six months
Ransomware attack in 2025 exposed protected health data on 1.3 million people, leaked to dark web
Credentials for 73,932 FortiGate firewalls exposed in FortiBleed campaign
Data breach confirmed via third-party vendor compromise exposing customer data
Ransomware attack stole thousands of NHS patient records from Essex NHS trust
France government messaging app breached in June 2026, exposing 73,467 government accounts
Cyberattack on law firm exposed hospital records of nearly 13,000 patients
Publicly exposed database leaked 24 billion stolen credentials, one of largest infostealer log compilations
Genetic testing firm breach exposed sensitive patient and employee data in June
24 billion stolen credentials leaked in publicly exposed database, largest infostealer log compilation
Ransomware attack disrupted phone systems and network services
Cyber incident confirmed after hackers claimed data theft and published stolen information
Platinum Technology data incident affected voters
Publicly exposed Elasticsearch database leaked 24 billion stolen credentials, largest infostealer compilation
221 million login records exposed, prompting MFA mandate for state systems
Customer records allegedly breached by threat actors operating on underground forums
24 billion stolen credentials leaked in publicly exposed database; one of largest infostealer log compilations