HackingFinancial ServicesFinanceCustomer Data InvolvedIdentity (basic)MediumContained

KerberRose

bd_b053396543ca5b5e · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 1, 2026

Filed

May 29, 2026

To disclose

28 days

Affected · nationwide

27,0764 in this filing

Linked

6 filings

Confidence

65%

Full breach record for KerberRose →

KerberRose S.C., a financial services entity based in Shawano, WI, reported an external system breach (hacking) occurring on April 29, 2026, discovered on May 1, 2026. The incident affected a total of 27,076 individuals, including 4 Maine residents. The breach involved the acquisition of names and personal identifiers. KerberRose notified affected individuals in writing on May 29, 2026, and provided 24 months of identity theft protection services through TransUnion Cyberscout.

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Maine clockDiscovered May 1, 2026 → Filed with AG May 29, 202628d ✓ ME AG ≤30d28 days 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.

Incident timeline

undetected · 2 days

discovery → filing · 28 days

Apr 29, 2026

Begins

May 1, 2026

Discovered

May 29, 2026

Filed

vs. sector median

4 wks faster

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Nebraska State AGbd_38b9df400b66b7512026-05-29Verified
Vermont State AGbd_971065d86a0267032026-05-29Verified
Indiana State AGbd_b5592268966c1f842026-05-29Verified
Massachusetts State AGbd_df731ff4766cb1442026-05-29Candidate

Show 1 more filing ↓

New Hampshire State AGbd_f7e6792d830978ee2026-05-29Verified

Name: Godfrey & Kahn: GKLaw
norm: godfrey kahn gklaw
Domain: gklaw.com

Name: KerberRose
norm: kerberrose
Domain: kerberrose.com
Industry: financial_services
Industry: Financial Servicesllm

Discovered: May 1, 2026
Breach occurred: Apr 29, 2026
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 29, 2026
Affected individuals: 27,076state + nationwide
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 24 months of identity theft protection services through TransUnion Cyberscout
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: ME AG ≤30d · 28d
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 1, 2026
→ Filed with AG: May 29, 2026
28d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 1, 2026 → Filed with AG: May 29, 2026	28d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Nebraska State AGMay 29 · first

Vermont State AGMay 29 · first

Indiana State AGMay 29 · first

Massachusetts State AGMay 29 · first

New Hampshire State AGMay 29 · first

Maine State AGMay 29 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/a0b45e9a-7d59-4bad-8b1f-b1c6cc74ba39.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 29, 2026
Raw hash: 4d4a42b47838af9fb3da6655b3c4a58f8453dfa63e6c31c912289ec704c928d9

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityGodfrey & Kahn: GKLaw

Victim entityKerberRose

Incidentdiscovered May 1, 2026

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov