Cytek Biosciences Reports Data Breach to New Hampshire AG in 2025

Cytek Biosciences, Inc. filed a data breach report with the New Hampshire Attorney General on December 22, 2025. The filing indicates an unspecified data breach incident occurred, impacting personal information, though specific details about the breach type and affected data were not disclosed in the public record.

This filing serves to inform the public about the incident, especially individuals who may have received a direct notification letter from Cytek Biosciences. Such a letter confirms that their personal information was potentially involved in the security event.

Cytek Biosciences specializes in cell analysis solutions for life sciences and biotechnology. As a result, the company handles various types of sensitive personal data for its employees, clinical researchers, and partners, which could include professional credentials and employment records.

Individuals who received a notification are advised to carefully read their letter. This document should provide the most specific available information regarding the incident and any protective measures or services offered by Cytek Biosciences.

As a general precaution, it is wise to remain vigilant for any unusual activity across your accounts. Consider monitoring financial statements and credit reports for unauthorized transactions or suspicious inquiries. Exercise caution with unsolicited communications that request personal information.