• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

The U.S. House banned WhatsApp on government devices due to security concerns

 | 

Russia-linked APT28 use Signal chats to target Ukraine official with malware

 | 

China-linked APT Salt Typhoon targets Canadian Telecom companies

 | 

U.S. warns of incoming cyber threats following Iran airstrikes

 | 

McLaren Health Care data breach impacted over 743,000 people

 | 

American steel giant Nucor confirms data breach in May attack

 | 

The financial impact of Marks & Spencer and Co-op cyberattacks could reach £440M

 | 

Iran-Linked Threat Actors Cyber Fattah Leak Visitors and Athletes' Data from Saudi Games

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 50

 | 

Security Affairs newsletter Round 529 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Iran confirmed it shut down internet to protect the country against cyberattacks

 | 

Godfather Android trojan uses virtualization to hijack banking and crypto apps

 | 

Cloudflare blocked record-breaking 7.3 Tbps DDoS attack against a hosting provider

 | 

Linux flaws chain allows Root access across major distributions

 | 

A ransomware attack pushed the German napkin firm Fasana into insolvency

 | 

Researchers discovered the largest data breach ever, exposing 16 billion login credentials

 | 

China-linked group Salt Typhoon breached satellite firm Viasat

 | 

Iran experienced a near-total national internet blackout

 | 

Malicious Minecraft mods distributed by the Stargazers DaaS target Minecraft gamers

 | 

Healthcare services company Episource data breach impacts 5.4 Million people

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Cyber Crime
  • Data Breach
  • Hacking
  • Ascension reveals personal data of 437,329 patients exposed in cyberattack

Ascension reveals personal data of 437,329 patients exposed in cyberattack

Pierluigi Paganini May 10, 2025

A data breach at Ascension, caused by a former partner’s compromise, exposed the health information of over 430,000 patients.

Ascension is one of the largest private healthcare systems in the United States, ranking second in the United States by the number of hospitals as of 2019.

At the end of April, the company notified patients that their personal and health information had been compromised in a December 2024 data breach suffered by a former business partner.

The data breach exposed personal and clinical data, including names, contact info, SSNs, and medical visit details. The company states that specific information varies by individual.

“On December 5, 2024, we learned that Ascension patient information may have been involved in a potential security incident. We immediately initiated an investigation to determine whether and how a security incident occurred.” reads the data breach notification sent to impacted individuals. “Our investigation determined on January 21, 2025, that Ascension inadvertently disclosed information to a former business partner, and some of this information was likely stolen from them due to a vulnerability in third-party software used by the former business partner.”

The company did not provide technical details about the security breach, however, the breach likely stems from Clop ransomware attacks exploiting a Cleo file transfer software flaw.

Ascension is offering two years of free identity monitoring, including credit monitoring, fraud support, and identity theft restoration through Kroll.

In a filing on April 29, the healthcare organization reported that the incident impacted 114,692 people in Texas and another 96 residents in Massachusetts.

Ascension disclosed in an April 28 filing with the U.S. Department of Health & Human Services (HHS) that the data breach affected 437,329 individuals.

However, Ascension confirmed in a filing with the U.S. Department of Health & Human Services (HHS) on April 28 that the data breach affected 437,329 individuals.

Unfortunately, this isn’t the first incident suffered by Ascension, in May 2024, the organization was hit by a Black Basta ransomware attack that severely impacted operations at hospitals in the country.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, Ascension)


facebook linkedin twitter

Ascension Cybercrime data breach Hacking hacking news healthcare information security news IT Information Security Pierluigi Paganini Security Affairs Security News

you might also like

Pierluigi Paganini June 24, 2025
The U.S. House banned WhatsApp on government devices due to security concerns
Read more
Pierluigi Paganini June 24, 2025
Russia-linked APT28 use Signal chats to target Ukraine official with malware
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    The U.S. House banned WhatsApp on government devices due to security concerns

    Mobile / June 24, 2025

    Russia-linked APT28 use Signal chats to target Ukraine official with malware

    APT / June 24, 2025

    China-linked APT Salt Typhoon targets Canadian Telecom companies

    APT / June 24, 2025

    U.S. warns of incoming cyber threats following Iran airstrikes

    Cyber warfare / June 24, 2025

    McLaren Health Care data breach impacted over 743,000 people

    Data Breach / June 23, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT