In Re: Lurie Children's Hospital Data Security Litigation

CourtDistrict Court, N.D. Illinois
DecidedSeptember 27, 2025
Docket1:24-cv-05503
StatusUnknown

This text of In Re: Lurie Children's Hospital Data Security Litigation (In Re: Lurie Children's Hospital Data Security Litigation) is published on Counsel Stack Legal Research, covering District Court, N.D. Illinois primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
In Re: Lurie Children's Hospital Data Security Litigation, (N.D. Ill. 2025).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF ILLINOIS EASTERN DIVISION IN RE: LURIE CHILDREN’S HOSPITAL ) No. 24-cv-05503 DATA SECURITY LITIGATION ) ) Judge Andrea R. Wood ) _______________________________________)

MEMORANDUM OPINION AND ORDER Plaintiffs are patients and the parents or guardians of minor patients who received medical treatment at Defendant Ann & Robert H. Lurie Children’s Hospital of Chicago (“Lurie”), a prominent children’s hospital and pediatric research center. Lurie collects and maintains certain of its patients’ personally identifiable information (“PII”) and personal health information (“PHI”), including their confidential medical and treatment information, payment information, and Social Security Numbers (“SSNs”). Lurie was the target of a cyberattack in late January 2024 (“Data Breach”), which resulted in a criminal ransomware group obtaining the PII and PHI of nearly 800,000 patients. Plaintiffs are among the individuals whose PII and PHI were compromised in the Data Breach, and they claim that the exposure of their private personal and medical information was due to Lurie’s failure to implement and maintain reasonable data security practices and protections. For that reason, Plaintiffs have brought the present action on behalf of themselves and putative classes of similarly situated individuals whose PII and PHI were exposed in the Data Breach. In the Consolidated Amended Class Action Complaint (“CAC”), Plaintiffs assert several Illinois state law claims, such as common law claims for negligence, breach of contract, and invasion of privacy, along with claims for violations of Illinois’s privacy and consumer protection laws. Now, Lurie moves to dismiss the CAC pursuant to Federal Rules of Civil Procedure 12(b)(1) and 12(b)(6). (Dkt. No. 45.) For the reasons that follow, Lurie’s motion is granted in part and denied in part. BACKGROUND As alleged in the CAC, Defendant Lurie is a Chicago-based pediatric hospital that operates 54 locations throughout the Chicago metropolitan area. (CAC ¶¶ 28, 33, Dkt. No. 37.)1 Lurie is nationally recognized as one of the top providers of pediatric care across a variety of specialties. (Id. ¶¶ 3, 32.) Given its reputation for providing high-quality and innovative care,

patients come from across the United States to receive services at Lurie. (Id. ¶¶ 28, 32–33.) To receive treatment at Lurie, patients—usually through their parents or guardians—must provide Lurie with their sensitive and private PII and PHI. (Id. ¶ 34.) The information Lurie collects and maintains from its patients may include their names, dates of birth, SSNs, addresses, medical histories, medical records, insurance information, billing information, and credit or debit card information. (Id. ¶¶ 34, 39.) Given its receipt and storage of PII and PHI, Lurie’s privacy policy acknowledges that “it is required by law to assure that patient information that identifies [a patient] is kept confidential in accordance with the law” and promises “to obtain [a patient’s] written authorization to use or disclose [their] patient information.” (Id. ¶ 36 (internal quotation marks omitted).) Similarly, its website’s privacy policy states that Lurie is “committed to

protecting the privacy of children and committed to maintaining reasonable physical, technical, and administrative measures to protect your personal information.” (Id. ¶ 37 (internal quotation marks omitted).) In addition to its internal policies, Lurie is required under federal law—namely, the Health Insurance Portability and Accountability Act (“HIPAA”)—to implement reasonable

1 For the purposes of Lurie’s motion, the Court accepts as true the well-pleaded facts in the CAC and draws all reasonable inferences in Plaintiffs’ favor. Of course, in summarizing the allegations here, the Court does not vouch for the objective truth of those allegations. Goldberg v. United States, 881 F.3d 529, 531 (7th Cir. 2018). security measures to guard against unauthorized use or disclosure of patients’ PII and PHI. (Id. ¶¶ 98, 101.) Despite its stated commitment to protecting the private and sensitive information disclosed to it by patients, Lurie purportedly failed to implement reasonable security measures to safeguard such information. (Id. ¶¶ 7, 38.) On January 26, 2024, a criminal ransomware group

known as Rhysida gained access to Lurie’s computer systems and network, compromising the PII and PHI of about 791,784 people. (Id. ¶¶ 1, 45.) It was not until about five days later that Lurie first detected unauthorized activity in its systems. (Id. ¶¶ 8, 43.) Upon realizing it had fallen victim to a cyberattack, Lurie took certain of its electronic systems offline and initiated an investigation of the Data Breach. (Id.) By February 8, 2024, Lurie publicly confirmed that its network had been attacked by criminal actors. (Id. ¶ 44.) And in March 2024, Rhysida took credit for the Data Breach, claiming that it had stolen data from Lurie’s systems and sold it for around $3.4 million on the dark web. (Id. ¶ 45.) On May 21, 2024, Lurie announced that it had resolved the active cybersecurity issue.

(Id. ¶ 47.) Yet it waited until June 27, 2024—nearly five months after the cyberattack—to formally notify those affected by the Data Breach that their PII and PHI had been compromised. (Id. ¶¶ 9, 49, 51.) Lurie’s notification letter informed recipients, in relevant part, as follows: Through Lurie Children’s ongoing investigation, Lurie Children’s has determined that cybercriminals accessed Lurie Children’s systems between January 26 and 31, 2024. . . . . Our investigation included a thorough and methodical review and analysis of impacted data on our systems. Through our ongoing investigation, Lurie Children’s has determined that certain individuals’ personally identifiable and/or protected health information was impacted. You have been identified as an individual whose information was impacted in this cybersecurity attack. We are notifying you to provide information and steps you can take to help protect your information. (Id. ¶ 51.) The letter provided few details regarding the nature of the Data Breach. (Id. ¶ 52.) Rather than explain what measures Lurie was taking to prevent future cyberattacks, the notice simply assured its recipients that Lurie “take[s] the privacy of [its] patients seriously. [Lurie is] working closely with security experts to continue [its] ongoing efforts to further enhance the security of [its] systems.” (Id. ¶¶ 52–53.) Finally, Lurie offered individuals impacted by the Data Breach 24 months of credit monitoring services. (Id. ¶ 55.) Each Plaintiff in this action is a current or former patient of Lurie or the parent or guardian of one. (Id. ¶¶ 123, 134, 148, 160, 171, 181, 194, 204, 214, 225, 237.) In connection with their treatment at Lurie, Plaintiffs disclosed their PII and PHI believing that Lurie employed reasonable measures to keep that information secure from unauthorized access or disclosure. (Id. ¶¶ 26, 41–42.) However, the Plaintiff parents received notifications from Lurie in June and July 2024 that their children’s PII and PHI had been exposed in the Data Breach.2 (Id. ¶ 27.) Upon learning that they were affected by the Data Breach, each Plaintiff undertook various efforts to

determine whether their PII and PHI had been misused and to mitigate the impact of any potential exposure. (Id. ¶¶ 130–31, 143–44, 155–56, 167–68, 177–78, 190–91, 200–01, 210–11, 221–22, 232–33, 244–45.) Nonetheless, four Plaintiffs experienced identity theft following the Data Breach, as Plaintiff Andre Avanessian learned that an unauthorized line of credit had been

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Bluebook (online)
In Re: Lurie Children's Hospital Data Security Litigation, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-lurie-childrens-hospital-data-security-litigation-ilnd-2025.