2026 STP Nuclear Operating Company — breach notice filed in Texas; SSNs and dates of birth; 1,173 Texans
Data compromised
Name, Social Security number and date of birth for 1,173 Texans, per the Texas filing. The total is not disclosed.
Technical writeup
Single regulator filing. No company statement, NRC or SEC record was found. The incident date is unknown, so the posting date is used.
Root cause
STP Nuclear Operating Company, which operates the South Texas Project nuclear plant, filed a breach notice with the Texas Attorney General in October 2026. The incident date and cause have not been published.