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CalPERS Data Breach Affects More than 750k People

The California Public Employees’ Retirement System, also known as CalPERS, has reported a major data breach. The CalPERS data breach investigation revealed that at some point, one of the organizations’ third-party partners had suffered a breach that compromised relevant information. The company publicized the event on June 21, 2023, explaining that a breach of PBI Research Services/Berwyn Group (“PBI”) had compromised confidential information belonging to more than 769,000 retirees and family members. This information includes names, dates of birth, and Social Security numbers.

If CalPERS sent you a data breach notification letter, you should read it thoroughly to get an idea of the risks you’re facing. From there, follow the guide for victims of a data breach that the law firm of Console & Associates, P.C., has provided. And if you need further guidance on your legal options in the wake of the CalPERS data breach, lawyers of the firm are ready to help. Call 866-778-5500 or send us an email at to schedule a consultation. To learn more about the CalPERS data breach, read our blog here:

What We Know So Far About the CalPERS Breach

The CalPERS data breach is still fresh news without much information to go on. The date of the breach and when the organization discovered the breach both remain unknown to the public. However, CalPERS has publicized some key information on its website.

The current source for data breach information comes from the organization’s website, the post, “CalPERS Takes Action in Response to Third-Party Breach of Retiree Information.” PBI Research Services/Berwyn Group, a third party that handles certain sensitive data for CalPERS, experienced what the organization describes as a “worldwide data security incident.”

While CalPERS provided PBI with the information, PBI’s system uses MOVEit Transfer developed by Progress Software, LLC. As it happens, MOVEit has contained a major vulnerability for some time, and this allowed an unauthorized party to access the information.

This is how hackers accessed the information, despite never breaching the CalPERS network. After discovering the leak, CalPERS investigated the problem to discover the types of compromised data and which users were victims, and ultimately sent out data breach letters on June 21, 2023.

CalPERS Background Information

CalPERS is a public pension program that provides retirement benefits and health insurance to public employees throughout the state of California. This includes direct employees of the state as well as those who work at the county and municipal levels. There are more than 2,875 people who work as CalPERS employees, and the organization has an annual revenue of around $4 billion.

Call a CalPERS Data Breach Lawyer

It’s stressful and confusing to learn that your personal data has been compromised, especially when that data includes your Social Security Number. Suddenly, your credit, identity, and financial health may all be at risk. Oftentimes, it could have been avoided if only the companies responsible for your data took greater precautions.

At the law firm of Console & Associates, P.C., we’re conducting a CalPERS data breach investigation to find out whether or not any negligence played a role in this data breach. If our efforts find that the breach was preventable, you might be able to pursue compensation for your financial harm and emotional suffering. Send us an email at or give us a call at 866-778-5500 to protect yourself and pursue your rights.

About the Author
Richard Console
Posted - 06/23/2023