RIS/PACS cybersecurity: protecting medical images and patient data in Colombia

The digitalization of healthcare has radically changed how medical images are generated, stored and shared. RIS (Radiology Information System) and PACS (Picture Archiving and Communication System) have become pillars of modern radiology, letting hospitals and clinics quickly access X-rays, CT scans, MRIs and other studies across the whole care network. That interconnection, however, has also opened new doors to digital threats, making cybersecurity a critical priority in any health data management strategy.

Why cybersecurity matters in RIS/PACS

RIS and PACS handle extremely sensitive information: not only medical images that may carry personal data (name, date of birth, clinical history), but also details that identify patients and their health status. Exposing this data does not just compromise patient privacy; it can carry legal, reputational and financial consequences for healthcare institutions. Service interruptions caused by cyberattacks can also disrupt continuity of care and delay critical diagnoses.

A report from the United States Department of Health and Human Services noted that thousands of PACS servers were exposed to the risk of unauthorized access.

The most common vulnerabilities in RIS/PACS

RIS and PACS typically integrate multiple devices, networks and applications, which creates several entry points for digital threats:

• Insufficient access controls: many systems rely on default passwords or basic authentication policies, making it easy for an attacker to gain access if credentials are not properly protected.
• Unpatched software: components inside servers or on connected devices that do not receive regular updates remain vulnerable to known exploits that attackers can take advantage of.
• Insecure protocols and configurations: some PACS still use older protocols or lack strong encryption for transmitting data, allowing interception while images are in transit.
• Malware and ransomware: malware can get in through email or compromised devices, while ransomware can encrypt entire databases, blocking access to medical images until a ransom is paid.

Consequences of a successful attack

A security incident in a RIS/PACS does not only expose personal information: it can also interrupt medical services. If a ransomware attack encrypts the database where imaging studies are stored, radiologists and physicians lose immediate access to information they need for clinical decisions, which can delay treatment or even put lives at risk.

Beyond that, manipulation of medical images by malware could alter diagnostic information, carrying the risk of clinical error. Unauthorized modification of images or metadata can lead to incorrect diagnoses or inappropriate treatment if it is not caught quickly.

Cybersecurity best practices for RIS/PACS

To protect RIS and PACS systems — and ultimately patient data — healthcare institutions need to implement several layers of security:

• Strong authentication and role-based access control: mechanisms such as multi-factor authentication (MFA), together with limiting user privileges by role, help reduce the risk of unauthorized access.
• Encryption of data in transit and at rest: data should remain encrypted both when stored and when transmitted between devices and servers, so it cannot be intercepted or read by malicious actors.
• Regular updates and patching: keeping software and systems current with the latest security patches prevents known vulnerabilities from being exploited.
• Network security and segmentation: placing PACS and RIS servers on isolated network segments, protected by firewalls and controlled access, limits how far a threat can spread in the event of an intrusion.
• Continuous staff training: since threats like phishing exploit social engineering to obtain credentials, educating teams on best practices and warning signs is fundamental.

NOVA Imaging’s role in the Colombian market

In Colombia, where many healthcare institutions are accelerating their digital transformation, having a technology partner with expertise in RIS/PACS and in cybersecurity aligned with global standards is a strategic advantage. NOVA Imaging not only provides modern integrated solutions with security controls built in from the design stage; it also works to industry best practices to ensure the systems it installs meet the main data protection protocols.

Through specialized consulting, tools with advanced authentication, and backup and recovery strategies, NOVA Imaging helps hospitals and diagnostic centers in Colombia strengthen their cybersecurity posture. That lets healthcare professionals focus on what actually matters — caring for patients quickly and accurately — while the risk of a security breach goes down.

Cybersecurity in RIS/PACS is not optional: it is a strategic necessity in an increasingly digital healthcare ecosystem. With risks and threats constantly evolving, healthcare institutions have to take a proactive approach to protecting patient information.