Strauss Borrelli PLLC, a leading data breach law firm, is investigating Keystone Shipping Co. (“Keystone”) regarding its recent data breach. The Keystone data breach involved sensitive personal identifiable information belonging to an undetermined number of individuals.
ABOUT KEYSTONE SHIPPING CO.:
Keystone is a full-service marine transportation company located in Pennsylvania. Founded in 1909, Keystone specializes in the safe, reliable, and efficient waterborne transportation of liquid, dry bulk, and roll-on/roll-off cargoes.2,3 Headquartered in Bala-Cynwyd, Pennsylvania, Keystone employs over 500 individuals.3
WHAT HAPPENED?
Recently, Keystone reported to the Attorney General of New Hampshire that it had experienced a data breach in which sensitive personal identifiable information in its systems may have been compromised. According to the breach notice, Keystone became aware of unusual activity on its network occurring on June 3, 2025.1 As a result, Keystone launched an investigation to determine the nature of the incident.
Through its investigation, Keystone determined that a third party had unauthorized access to its network and some files were obtained.1 As a result, Keystone began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. On June 20, 2025, Keystone concluded its investigation. While the information impacted varies depending on the individual, the type of information potentially exposed includes:
- Name
- Social Security number
On July 21, 2025, Keystone began mailing data breach notification letters to impacted individuals. Based on the breach notice sent to New Hampshire residents, Keystone is providing affected individuals with a list of the specific types of sensitive information impacted and complimentary credit monitoring services. A link to the form breach notification letters that Keystone filed with the Attorney General of New Hampshire is below.
If you received a breach notification letter from Keystone Shipping Co.:
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 872.263.1100 or sam@straussborrelli.com.
