ChristianaCare Data Breach

ChristianaCare reported a data breach related to Oracle Health (formerly Cerner), with sensitive patient data potentially exposed. The breach, which began on January 22, 2025, did not impact ChristianaCare’s IT systems. Affected patients are being notified and offered credit monitoring services.

ChristianaCare
Date of Breach: April 2025
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Who was affected:

Clients of ChristianaCare

Impacted Data:

Names

Social Security numbers

Medical record numbers

Doctor information

Diagnoses

Medications

Test results

Medical images

Care and treatment details

ChristianaCare, a leading healthcare provider, has announced that certain patient data was compromised in a cybersecurity incident involving Oracle Health (formerly Cerner). The breach occurred due to unauthorized access to legacy Cerner systems, which affected the data of multiple healthcare providers, including ChristianaCare. This article provides key details about the breach, the types of data involved, and the steps individuals can take to protect their information.

ChristianaCare’s Data Breach Investigation

In April 2025, Oracle Health informed ChristianaCare of a data breach in which an unauthorized third party accessed legacy Cerner systems as early as January 22, 2025. The breach affected multiple healthcare organizations that use Oracle Health’s electronic health records (EHR) system, including ChristianaCare.

Upon learning of the breach, Oracle Health immediately began an investigation, brought in external cybersecurity specialists, and worked with federal law enforcement. As part of the investigation, law enforcement requested that patient notifications be delayed to avoid compromising the ongoing inquiry.

On September 29, 2025, Oracle Health provided ChristianaCare with a list of affected patients. The compromised data varies by individual but may include sensitive personal and medical information. ChristianaCare’s IT systems were not impacted, and there was no disruption to clinical operations.

ChristianaCare is mailing notification letters to patients whose information was involved in this incident. The notification includes an offer of complimentary credit monitoring and minor identity protection services for a period of two years.

When Did This Breach Occur?

The breach was first detected in January 2025, with unauthorized access beginning as early as January 22, 2025. Oracle Health informed ChristianaCare about the breach in April 2025. Notifications to affected patients were delayed until September 29, 2025, due to an ongoing investigation by federal law enforcement.

What Information Was Breached?

The breach involved patient data stored on Oracle Health’s legacy Cerner systems. The specific information compromised may vary by patient but could include:

  • Names

  • Social Security numbers

  • Medical record numbers

  • Doctor information

  • Diagnoses

  • Medications

  • Test results

  • Medical images

  • Care and treatment details

It is important to note that no data maintained by ChristianaCare’s current IT systems was involved, and there was no disruption to the organization’s clinical operations.

What You Can Do

If you were affected by the ChristianaCare data breach, it is important to take the following steps to protect your personal information:

  • Activate credit monitoring: ChristianaCare is offering a complimentary two-year membership for credit monitoring and identity protection services to affected individuals. Be sure to activate these services to monitor your credit and detect any unauthorized activity.

  • Review statements: Carefully review any statements you receive from your healthcare providers and health insurers. If you notice any discrepancies or unauthorized charges, immediately report them to the relevant provider or insurer.

  • Place a fraud alert: Consider placing a fraud alert on your credit report. This will notify creditors to take extra steps to verify your identity before extending credit in your name.

  • Freeze your credit: A credit freeze can prevent creditors from accessing your credit report, which makes it more difficult for identity thieves to open new accounts in your name.

  • Watch out for phishing: Be vigilant for phishing scams or fraudulent communications attempting to collect your personal information. Cybercriminals may use this breach to attempt to steal your data.

ChristianaCare has also committed to reviewing the cybersecurity practices of its third-party vendors to prevent similar incidents in the future.

File a Data Breach Lawsuit Against ChristianaCare

If you were affected by the ChristianaCare data breach or received notification that your information was compromised, you may be entitled to file a class action lawsuit against ChristianaCare for failing to adequately protect your sensitive information.

At Class Action U, we help individuals like you explore their legal options and connect you with experienced attorneys who specialize in data breach lawsuits. If your information was impacted, you could be entitled to compensation for the harm caused by this incident.

Contact us today for a free consultation to see if you qualify for a lawsuit and to learn about the compensation you may be entitled to.

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Frequently Asked Questions

A data breach occurs when sensitive, confidential, or protected information is accessed, stolen, or disclosed without authorization. Data breaches often occur through phishing emails, malware, weak passwords, insider threats, or unsecured databases. Indicators of a data breach can include unexpected password resets, suspicious account activity, unauthorized transactions, or notifications from companies about compromised information.If you suspect your data has been compromised, you must take measures and act quickly. Change passwords, enable two-factor authentication, review your financial accounts for unusual activity and consider freezing your credit.

Once stolen, your personal information may be sold on the dark web or used for identity theft and financial fraud. In some cases, hackers use the data to extort companies or launch further attacks. Victims often face long-term risks, including damage to credit and privacy.

If you receive a data breach notification, don’t ignore it. Immediately change passwords for the affected account and any others that share credentials. Enroll in any free credit monitoring services offered and monitor financial statements closely.

To pursue a data breach claim, you’ll need documentation showing your information was compromised and proof of resulting harm, such as fraudulent charges, credit score damage, or identity theft reports. Notification letters, financial records, and communication with the breached company can help support your claim.

Yes. If a company fails to protect consumer data or delays notifying victims, it may be held liable under state and federal privacy laws. Many victims join class action lawsuits to recover financial losses and hold negligent organizations accountable.

Data breach settlements vary widely depending on the size of the breach, type of data compromised, and damages suffered by victims. Payouts may include cash compensation, identity theft protection, or reimbursement for losses. Many settlements range from a few hundred to several thousand dollars per person. A skilled data breach lawyer can guide victims through the complex legal process, ensuring their rights are protected. If you’ve received a data breach notification or believe your personal data was exposed, you may be eligible for compensation. Contact Class Action U to learn more about how to join a data breach lawsuit and understand the process of filing.