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Aesto Health
9.5Mrecords exposed
Aesto LLC, operating as Aesto Health, disclosed that a data breach discovered recently affects more than 9.5 million individuals. [...]
The year's largest confirmed data breaches, ranked by records exposed. This list updates itself automatically as new disclosures go public.
Aesto LLC, operating as Aesto Health, disclosed that a data breach discovered recently affects more than 9.5 million individuals. [...]
Connor Jones reports: McKesson’s cyberattack last month affected roughly 6.4 million individuals, according to Have I Been Pwned (HIBP). The breach notification service added data leaked by serial extortionists Shi
Diagnostic imaging service data breach affected 5.8M individuals via vendor compromise
Healthcare company AdaptHealth has confirmed that data of 4.1 million people was exposed in a cyberattack discovered in July that was attributed to the ShinyHunters threat group. [...]
Patient data breach confirmed with 3.5M records stolen by The Gentlemen ransomware gang
Unauthorized access detected January 19, 2026. Ransomware encrypted files on a legacy server containing a backup of electronic medical records. Patient data exposed: names, contact information, birth dates, treatment notes, clinical histories. SSNs exposed for a limited number of individuals.
Nitrogen ransomware group claimed responsibility on the dark web in February. Data compromised includes passports, driver's licenses, and information from medical records.
Most of the incidents above began with credentials and infrastructure that were exposed long before the breach. Run a free exposure assessment to see what an attacker can already find on your organization.
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