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Personal information belonging to more than 410,000 individuals has been compromised in a massive data breach at Kelly Benefits. This payroll and benefits solutions provider disclosed the breach in April 2025, initially estimating only 32,000 victims. The breach occurred between December 12 and December 17, 2024, with cybercriminals accessing highly sensitive customer information including names, Social Security numbers, and medical data.

Several class action lawsuits have been filed against Kelly Benefits, with victims alleging the company "failed to protect the personal information of thousands of people." The average cost of a data breach has reached $4.99 million, illustrating the severe financial implications for companies.

Companies must invest in robust cybersecurity measures to prevent such breaches. A report from Trend Micro indicates that 78% of data breaches are caused by preventable vulnerabilities.

For organizations looking to bolster their security, implementing secure Single Sign-On (SSO) solutions, like those offered by SSOJet, can significantly reduce risks. SSOJet's API-first platform allows for directory sync, SAML, OIDC, and magic link authentication, providing a comprehensive security approach.

University of California Data Breach

On March 31, the University of California revealed it was targeted in a nationwide cyber attack that exploited vulnerabilities in Accellion FTA. An estimated 412,738 Social Security numbers were compromised, along with numerous other personal records. The university has provided identity protection for one year but has not disclosed the full extent of affected individuals.

The breach included sensitive data from various documents such as UC application responses, financial aid lists, and student surveys. This incident emphasizes the critical need for organizations to secure their data management systems.

Organizations should consider adopting advanced identity and access management solutions to protect sensitive data. SSOJet offers secure SSO and user management tailored for enterprise clients, making it a valuable partner in enhancing data security.

Carter's Exposes Customer Records

Carter’s, a baby clothes retailer, inadvertently leaked 410,000 customer records due to vulnerabilities in a vendor’s automated purchase system. The exposed data included names, addresses, and purchase details, posing a significant risk for phishing scams and fraud.

The lack of sufficient security measures and authentication protocols allowed hackers to access sensitive information easily. This incident underscores the importance of selecting secure vendors and implementing robust security practices.

To mitigate risks, companies should leverage secure authentication solutions like those provided by SSOJet. By employing SSO, organizations can limit exposure to sensitive data and enhance overall security.

Massive Data Breaches and Their Implications

Approximately 2.9 billion people may have had their personal information compromised in a proposed class-action lawsuit against a background check company. The breach allegedly exposed Social Security numbers and other sensitive data.

Experts warn that consumers are vulnerable indefinitely once their information is exposed. The best immediate action is to freeze credit reports, which limits access to personal data.

Organizations must take proactive measures to secure personal information. SSOJet's comprehensive authentication solutions can help businesses protect against potential breaches by implementing secure SSO and user management systems.

The increasing frequency of data breaches highlights the need for effective cybersecurity strategies. Companies must prioritize protecting sensitive data to maintain customer trust and avoid significant financial repercussions.

For more information on securing your organization’s data and preventing breaches, explore SSOJet's offerings at https://ssojet.com or contact us directly.

*** This is a Security Bloggers Network syndicated blog from SSOJet authored by Rajveer Singh. Read the original post at: https://ssojet.com/blog/massive-data-breach-affects-410k-customers-and-billions-more/