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Nium Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Nium, Inc. data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Nium, Inc.
Nium, Inc. is a global business-to-business financial technology company that provides cross-border payments and card-issuing solutions. Headquartered in Singapore and San Francisco, Nium operates a payments infrastructure that enables banks, fintechs, and enterprises to move money in real time across borders. The company’s network supports more than one hundred currencies and covers over 190 countries, with a focus on delivering fast, secure transactions for its clients.
Founded in 2016, Nium has expanded rapidly, now employing more than seven hundred people across offices in multiple countries including the United States, United Kingdom, India, and others.
What Happened?
On Nov. 3, 2025, Nium detected unauthorized access attempts to its file system. The company responded by immediately restricting access and conducting a detailed investigation. It was discovered that an old file from 2022 containing customer information had been accessed and downloaded by an unauthorized party.
Information Types Exposed:
- Name
- Email address
- Physical address
- Phone number
- Social Security number
- Date of birth
Nium reported the breach to the Massachusetts Attorney General’s office on Dec. 10, 2025. According to the disclosure, thirteen people in Massachusetts were affected. The company has stated that the affected file was primarily used for storing technical system logs, but a limited number of files containing personal data were identified as impacted.
In response, Nium has strengthened its monitoring, implemented additional security controls, and is planning to migrate to a new technology stack to further mitigate risks. The company is offering complimentary credit monitoring to affected individuals.
Your Rights and Next Steps
If you received a notice from Nium or believe you may have been affected by this breach, you have important rights. When sensitive information like your Social Security number, date of birth, and contact details are exposed, there is an increased risk of identity theft, phishing attempts, and fraud.
Here’s what you can do:
- Review any communications from Nium regarding the breach and keep a copy for your records
- Take advantage of the complimentary credit monitoring service offered by Nium
- Monitor your financial accounts and credit reports for any suspicious activity
- Be vigilant for phishing emails, texts, or calls that may use your personal information to appear legitimate
- Consider placing a fraud alert or security freeze on your credit file with the major credit bureaus
Lawyers are ready to help individuals affected by this breach understand their rights and pursue compensation. If your information was compromised, you may be entitled to damages for the risks and inconvenience caused by the exposure of your personal data.
You May Be Entitled to Compensation
If you were impacted by the Nium data breach, you may be eligible to join a class action lawsuit and seek compensation for any harm or risk resulting from the exposure of your personal information. Lawyers are actively investigating this case and can help guide you through the process.
To find out if you qualify and to take the next step, complete the below form to join the lawsuit investigation.
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