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Regulator-posted notice

Breach notice filed by Enstar (US) Inc. (November 2023)

Organization named: Enstar (US) Inc. Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Ransomware attack due to a zero-day vulnerability of MOVEit file transfer system

What the sources say

Maryland Attorney General security breach notices Primary notice

Posted on the Maryland Attorney General security breach notices with a submission date of Nov. 20, 2023.

Organization as reported
Enstar (US) Inc.
Category as reported
Ransomware attack due to a zero-day vulnerability of MOVEit file transfer system
Information types as reported
Name, Social Security number, driver’s license number, financial account information, and medical information
Submission date
Nov. 20, 2023
Observed by BreachRecords
2026-10-19 05:01 UTC (revision 46446, list:Security-Breach-Notices-2023:item:3038)
Archived copy
Held in the private archive (provenance)

The listing records a filing with the agency; it is not a finding by the agency.

Delaware Data Security Breach Database (data.delaware.gov dir6-wx8v) Amendment

Listed in the Delaware Data Security Breach Database with a notice date of Nov. 20, 2023.

Organization as reported
Enstar (US), Inc.
Incident dates as reported
May 29, 2023
Discovery date as reported
Oct. 21, 2023
Notice date
Nov. 20, 2023
Observed by BreachRecords
2026-10-19 04:58 UTC (revision 28946, row:305)
Archived copy
Held in the private archive (provenance)

The listing records a filing with the agency; it is not a finding by the agency.

Vermont security breach notice archive, Apr. 2022 to Apr. 2026 (document pages and PDFs) Duplicate filing

Posted in the Vermont security breach notice archive, Apr. 2022 to Apr. 2026 on May 3, 2024.

Organization as reported
Enstar (US)
Posted date
May 3, 2024
Observed by BreachRecords
2026-11-02 01:04 UTC (revision 67015, node:11327)
Archived copy
Held in the private archive (provenance)

The listing records a filing with the agency; it is not a finding by the agency.

Figures, per source

  • 131 individuals affected (residents of the reporting state), according to the Delaware Data Security Breach Database, source date Nov. 20, 2023, revision observed 2026-10-19.
  • 477 individuals affected (residents of the reporting state), according to the Maryland Attorney General security breach notices, source date Nov. 20, 2023, revision observed 2026-10-19.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (Maryland Attorney General security breach notices)
  • Notice date (Delaware Data Security Breach Database)
  • Posted date (Vermont security breach notice archive, Apr. 2022 to Apr. 2026)
  • Observed by BreachRecords (revision 46446)
  • Observed by BreachRecords (revision 28946)
  • Observed by BreachRecords (revision 67015)
  • Approved by a reviewer

Organizations linked by a reviewer

  • Enstar (US) Inc. Named as the filer Provisional: identity as filed, not yet matched to the directory Linked 2026-11-04, method manual.

Archived evidence

  • db1f795b34839e756316077c5bc8c4af363da46537e8ed9d502c75c355a0e45c
    text/csv, 135,151 bytes, retrieved from Delaware Data Security Breach Database, 2026-10-19 04:58 UTC. Archived privately · Provenance · Source page
  • 71062c505aa0185b949747dddca9cc23ccd62227a98e1d4cc5a8b69e9b807b02
    application/json, 1,271,867 bytes, retrieved from Maryland Attorney General security breach notices, 2026-10-19 05:01 UTC. Archived privately · Provenance · Source page
  • b2bb4c30f743642c2c1b6bbc82a694e1ddbe03b1fee8df4aac483efe1814fb50
    text/html, 25,951 bytes, retrieved from Vermont security breach notice archive, Apr. 2022 to Apr. 2026, 2026-11-02 01:04 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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