Healthcare is currently the most targeted industry for cybercrime, accounting for nearly a quarter of all reported breaches last year. Major incidents at United Healthcare in the US, and the NHS in Great Britain, showed just how vulnerable hospitals and medical facilities have become.
Let’s explore why healthcare is such an attractive target and which solutions can help medical facilities fight back against cybercrime.
Why Are There So Many Healthcare Data Breaches ?
Healthcare organizations are gold mines for cybercriminals. Medical records contain everything an attacker could want: social security numbers, insurance details, payment information, and sensitive health data. On the dark web, these records can sell for hundreds of dollars each.
But it’s not just about the data. Healthcare facilities make attractive targets because they can’t afford downtime.
When systems go down, patient care is at risk. This urgency makes hospitals more likely to pay the ransom quickly, which criminals know and exploit. Many facilities also run outdated systems and medical devices that were never designed with security in mind, creating weak points in their networks.
Another key factor is the human element. Healthcare staff are focused on saving lives, not cybersecurity. They often work long hours under pressure, making them more vulnerable to phishing attacks or security shortcuts. With hundreds of employees accessing systems 24/7, and constant staff turnover, maintaining security awareness is a major challenge.
How Healthcare Breaches Happen
While attack methods are constantly evolving, most breaches fall into three main categories, each exploiting different vulnerabilities in healthcare systems and processes:
Phishing Attacks
The most common entry point for cybercriminals is through phishing emails, where attackers send convincing messages that appear to be from trusted sources, such as senior doctors, suppliers, or insurance companies.
When busy medical staff click on malicious links or download attachments, attackers gain access to the network and can begin spreading through hospital systems.
Insider Threats
Insider threats occur when someone with legitimate access to healthcare systems compromises security either accidentally or intentionally.
For example, staff can unknowingly create security risks by sharing passwords, leaving systems unlocked, or falling for social engineering tricks.
In some cases, disgruntled employees might deliberately misuse their access to steal or compromise data.
Third-Party Vulnerabilities
Third-party vulnerabilities arise when external organizations with access to healthcare systems become a security risk to the main organization.
Healthcare organizations connect with numerous vendors and contractors, including medical equipment suppliers and billing services. When these third parties have weak security, their compromised credentials can give attackers a backdoor into hospital systems.
What Happens During a Healthcare Data Breach?
When cybercriminals successfully breach a healthcare organization, the impact can be devastating and long-lasting, extending far beyond just financial losses. Here’s what typically unfolds when a healthcare organization is breached:
- Critical systems become inaccessible, forcing medical staff to resort to paper records and potentially divert emergency patients to other facilities
- Patient care gets disrupted as doctors lose access to medical histories, test results, and critical data needed for treatment decisions
- Organizations face ransom demands that often reach millions of dollars, plus massive costs for system recovery and security upgrades
- Legal consequences pile up, including mandatory breach reporting, potential HIPAA violations, regulatory fines, and class action lawsuits
- Reputation damage affects patient trust, while insurance premiums spike and revenue drops during system outages
- Healthcare organizations must document everything for investigators, from initial breach detection through recovery efforts
Major Healthcare Ransomware Attacks of 2024 and 2025
Cybercriminals target hospitals and medical facilities of all sizes. Here’s a quick overview of the most significant breaches, highlighting the attack methods and their impact on healthcare organizations and patients:
New York Blood Center
When: January 2025
What happened: A ransomware attack hit New York Blood Center Enterprises, which supplies blood products to more than 400 hospitals across the US and operates in more than 17 states.
The attack forced them to take systems offline and disrupted blood donation operations across all their divisions. The center had to implement manual workarounds to maintain critical services and blood distribution. All donor center operations and community blood drives were affected, with some locations having to cancel appointments.
Cost: While exact costs are unknown, the widespread disruption to blood services and need for emergency workarounds likely resulted in millions in damages and recovery costs.
NHS
When: June 2024
What happened: A cybercrime group attacked Synnovis, a pathology testing organization used by NHS trusts in London. The attackers stole 400GB of private patient information including names, dates of birth, NHS numbers, and blood test results. Over 3,000 hospital and GP appointments were disrupted.
Cost: Not disclosed, but likely substantial.
United Healthcare/Change Healthcare
When: February 2024
What happened: In the largest healthcare data breach in U.S. history, attackers compromised Change Healthcare using stolen credentials that weren’t protected by multi-factor authentication.
The breach affected over 190 million people, exposing names, addresses, Social Security numbers, medical diagnoses, and financial information. The attack caused months of disruption across the US healthcare sector as Change Healthcare’s systems remained offline.
Cost: UnitedHealth paid two separate ransoms, including $22 million to a ransomware gang.
Protect Your Healthcare Data with ProLion
ProLion is a leading provider of ransomware protection solutions for the healthcare sector, helping medical organizations safeguard patient data and maintain critical services.
ProLion’s DataDefense solution proactively prevents ransomware by monitoring file activity in real time and blocking suspicious users before they can infiltrate systems.
A prime example is Germany’s Klinikum Peine hospital.
When upgrading their IT systems, they chose DataDefense to protect their patient data. The solution now provides round-the-clock monitoring of their network, helping them avoid the kind of devastating ransomware attacks that have hit so many healthcare organizations recently.
Protect Your Healthcare Data Now
The healthcare sector remains a prime target for cybercriminals, with attacks growing more sophisticated and devastating each year. Organizations need proactive protection that can stop ransomware attacks before they encrypt critical systems and leak patient data.
Sign up for an on-demand demo to DataDefense in action, and learn how it can protect your healthcare organization from becoming the next breach headline.
