HackingGovernmentGovernmentStolen CredentialsCapture Stored DataData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)CredentialsMediumContained

City of Hayward, Minnesota

bd_31b23c8ba48b2281 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 30, 2024

Filed

Jan 29, 2025

To disclose

4 weeks

Affected

173state residents only

Linked

9 filings

Confidence

66%

Full breach record for City of Hayward, Minnesota →

City of Hayward notified the Maryland Attorney General of a data security incident occurring on July 9, 2023. An unauthorized actor downloaded files containing personal information, including names, SSNs, financial account numbers, and medical data. The incident affected approximately 173 Maryland residents. The City engaged external cybersecurity professionals, notified the FBI, and is offering 12 months of credit monitoring to affected individuals.

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Date basis clock✓ Clock withheld · confirmation date4 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

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
Massachusetts State AGbd_48edcf84441f7ece2025-01-29Verified
Nebraska State AGbd_6fc43c6e9c18e0e02025-01-29Verified

Show 4 more filings ↓up to 2d gap

New Hampshire State AGbd_c85af40eea4341b42025-01-29Verified
Vermont State AGbd_e6c7af17315c59532025-01-29Verified
Montana State AGbd_ebf17f268801e42b2025-01-29Verified
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: Jan 29, 2025
Affected individuals: 173state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)Credentials
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the FBI of the incident
Initial access: valid_credentials

During the incident: Engaged external cybersecurity professionals
Notified the FBI of the incident
Providing notice to the affected individuals
Providing complimentary credit monitoring services
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
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: Clock withheld · confirmation date

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

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

Maryland 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://oag.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376261.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: d0d0fb40c0126e1f898392f8e02c82dbae99ace1bde9c2645782b5c2384068c6

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityCity of Hayward, Minnesota

Victim entityCity of Hayward, Minnesota

Incidentdiscovered Dec 30, 2024

Stated responseEngaged external cybersecurity professionals

ComplianceClock withheld · confirmation date

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov