HackingGovernmentGovernmentStolen CredentialsData ExfiltratedTargetedIdentity (basic)LowContained

City of Hayward, Minnesota

bd_ebf17f268801e42b · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 30, 2024

Filed

Jan 29, 2025

To disclose

4 weeks

Affected

7state residents only

Linked

9 filings

Confidence

66%

Full breach record for City of Hayward, Minnesota →

City of Hayward notified Montana DOJ of a data security incident occurring on July 9, 2023, discovered on December 30, 2024. Unauthorized actors stole personal information including names. The City engaged external cybersecurity professionals, notified the FBI, and is providing 12 months of Experian IdentityWorks to affected individuals. No evidence of identity theft was found.

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Incident timeline

undetected · 540 days

discovery → filing · 4 weeks / 30 days

Jul 9, 2023

Begins

Dec 30, 2024

Discovered

Jan 29, 2025

Filed

vs. sector median

7 wks faster

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

California State AGbd_07b9796ec86c247f2025-01-29Verified
Indiana State AGbd_23584d2513e0424f2025-01-29Verified
Maryland State AGbd_31b23c8ba48b22812025-01-29Verified
Massachusetts State AGbd_48edcf84441f7ece2025-01-29Verified

Show 4 more filings ↓up to 2d gap

Nebraska State AGbd_6fc43c6e9c18e0e02025-01-29Verified
New Hampshire State AGbd_c85af40eea4341b42025-01-29Verified
Vermont State AGbd_e6c7af17315c59532025-01-29Verified
Maine State AGbd_999d64041fc82d932025-01-31 · +2dCandidate

Name: City of Hayward, Minnesota
norm: city of hayward minnesota

Name: City of Hayward, Minnesota
norm: city of hayward minnesota
Industry: Governmentllm

Discovered: Dec 30, 2024
Breach occurred: Jul 9, 2023
Undetected for: 540 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 7state-resident count only
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the FBI
Initial access: valid_credentials

During the incident: Commenced a prompt and thorough investigation
Worked closely with external cybersecurity professionals
Notified the FBI of the incident
Providing complimentary access to Experian IdentityWorks for 12 months
Changes made: Reviewing its existing policies and training protocols relating to data protection
Enhancing security measures and monitoring tools to further mitigate risks of this nature
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 9 states

View merged incident ↗

California State AGJan 29 · first

Indiana State AGJan 29 · first

Maryland State AGJan 29 · first

Massachusetts State AGJan 29 · first

Nebraska State AGJan 29 · first

New Hampshire State AGJan 29 · first

Vermont State AGJan 29 · first

Montana State AGJan 29 · first · this page

Maine State AG+2d

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://dojmt.gov/wp-content/uploads/2025/03/Consumer-notification-letter-167.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 29, 2025
Raw hash: faeb227d9df2588dfc21ddb7f6b8bbf9fe10165116a8d747a006babe96f2f1f1

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityCity of Hayward, Minnesota

Victim entityCity of Hayward, Minnesota

Incidentdiscovered Dec 30, 2024

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov