HackingCustomer Data InvolvedIDENTITY_BASICMediumContained
Horicon Bank
bd_10f2b758a7ee743c · schema v1 · pii pii-v1
Full breach record for Horicon Bank →Horicon Bank, a financial services institution based in Horicon, WI, reported an external system breach (hacking) occurring on May 19, 2021, discovered on May 20, 2021. The incident affected a total of 30,394 individuals, including 1 Maine resident. The breach involved the acquisition of names and personal identifiers. The bank provided written notification to affected individuals on November 16, 2021, and offered 12 months of credit monitoring, identity restoration, and identity theft insurance through Experian.
Maine clockDiscovered May 20, 2021 → Filed with AG Nov 16, 2021180d ✗ ME AG >90d26 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed30,394 affectedView incident
Source provenance
- Source URL
- https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/b453fa5b-e601-476c-901f-674a30ded22f.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Nov 16, 2021
- Raw hash
- b64c64c6368c9c232e1e956933bdfe07d213c8b8a3b34afcdc8ccf8158491017
Reporting entity
- Name
- Horicon Banknorm: horicon bank
- Industry
- Financial Services
Victim entity
- Name
- Horicon Banknorm: horicon bank
- Industry
- Financial Services
Incident
- Discovered
- May 20, 2021
- Materiality determined
- —
- Notification sent
- Nov 16, 2021
- Affected individuals
- 30,394
- Data types
- IDENTITY_BASIC
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1190 Exploit Public-Facing Application
- Threat actor
- External
- Regulator citations
- Filed data breach notice with Maine Attorney General
- Initial access
- exploit_public_facing
Compliance
- Time to disclose
- 26 weeks(180 days from discovery to filing)
- Compliance flags
- ME AG >90d · 180dME resident >60d · 180d
- Discovery-date grounding
- AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
- Clock breakdown
Statute Window Elapsed Threshold Status Maine Discovered: May 20, 2021→ Filed with AG: Nov 16, 2021180d 90 days ME AG >90d Maine Discovered: May 20, 2021→ Notified: Nov 16, 2021180d 60 days (analyst band; statutory cap is 30 days) ME resident >60d
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.