Johnson Matthey Data Breach Investigation

Turke & Strauss LLP, a leading data breach law firm, is investigating Johnson Matthey, Inc. (“Johnson Matthey”) regarding its recent data breach. The Johnson Matthey data breach involved personal identifiable information belonging to over 6,000 employees.


Johnson Matthey is a chemical manufacturing company based in England. Founded in 1817, Johnson Matthey provides technology and expertise that many of the world’s leading energy, chemicals, and automotive companies depend on to decarbonize, reduce harmful emissions, and improve their sustainability.3 Today, Johnson Matthey’s portfolio is focused in its core competencies in metal chemistry, catalysis and process technology and divesting Value Businesses.4 Headquartered in London, England, Johnson Matthey has locations in more than 30 countries and employs over 10,000 individuals.


On February 15, 2024, Johnson Matthey learned that files containing sensitive personal information of members of its U.S.-based workforce had been stored on a third-party storage platform since 2020. Through its investigation, Johnson Matthey determined that the files were placed on the storage platform by a contractor hired to perform work for the company who inadvertently left the files on the platform following the completion of their work. On March 18, 2024, Johnson Matthey began notifying individuals whose information may have been impacted. The type of information potentially exposed includes:

  • Name
  • Social Security number
  • Date of birth

If you are a current or former employee of, or have received a breach notification letter from, Johnson Matthey, Inc.:

We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at (608) 237-1775 or

If you were impacted by the Johnson Matthey data breach, you may consider taking the following steps to protect your personal information.

  1. Carefully review the breach notice and retain a copy;
  2. Enroll in any free credit monitoring services provided by Johnson Matthey, Inc.:
  3. Change passwords and security questions for online accounts;
  4. Regularly review account statements for signs of fraud or unauthorized activity;
  5. Monitor credit reports for signs of identity theft; and
  6. Contact a credit bureau(s) to request a temporary fraud alert.

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