HackingGovernmentGovernmentStolen CredentialsData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHighContained

City of Philadelphia

bd_61b530ec70c9c4bc · schema v1 · pii pii-v1

Severity

High

Discovered

May 24, 2023

Filed

Jul 8, 2024

To disclose

14 months

Affected · nationwide

35,88115 in this filing

Linked

3 filings

Confidence

66%

Full breach record for City of Philadelphia →9 incidents on file

The City of Philadelphia experienced an external system breach (hacking) between May 26 and July 28, 2023, where an unauthorized actor accessed email accounts. Potentially exposed data included names, addresses, SSNs, and financial account information for approximately 35,881 individuals. The City notified law enforcement, HHS, and affected individuals, offering 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 24, 2023 → Filed with AG Jul 8, 2024411d ✗ ME AG >90d14 months 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

May 26, 2023

Begins

Jul 8, 2024

Filed

vs. sector median

+48 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_38a8e395fa907b7e2024-07-08Verified
Vermont State AGbd_c4ca7becb1d739f62024-07-08Verified

Name: City of Philadelphia
norm: city of philadelphia
Domain: phila.gov

Name: City of Philadelphia
norm: city of philadelphia
Domain: phila.gov
Industry: Governmentllm

Discovered: May 24, 2023
Breach occurred: May 26, 2023 – Jul 28, 2023
Materiality determined: —
Notification sent: Jul 8, 2024
Affected individuals: 35,881state + nationwide
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: submitted notice to the U.S. Department of Health and Human Services (HHS)provided notice to relevant state regulators
Initial access: valid_credentials

During the incident: Launched an investigation, with the assistance of third-party cybersecurity specialists
Notified federal law enforcement
Submitted notice to the U.S. Department of Health and Human Services (HHS)
Posted substitute notice on its website
Provided notice to the media in the Philadelphia Inquirer
Provided access to credit monitoring services for twelve (12) months to Maine residents
Providing written notice of this event to relevant state regulators
Provided notice to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Working to implement additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 months(411 days from discovery to filing)
Compliance flags: ME AG >90d · 411dME resident >180d · 411d
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 24, 2023
→ Filed with AG: Jul 8, 2024
411d 90 days ME AG >90d
Maine
Discovered: May 24, 2023
→ Notified: Jul 8, 2024
411d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 24, 2023 → Filed with AG: Jul 8, 2024	411d	90 days	ME AG >90d
Maine	Discovered: May 24, 2023 → Notified: Jul 8, 2024	411d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGJul 8 · first

Vermont State AGJul 8 · first

Maine State AGJul 8 · 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/c7d76072-5558-4e5f-8265-ac4af1a97d3f.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 8, 2024
Raw hash: d36639f90dbc5b2e079fb711523915b41653685f3619322e19c038af57ac7e6c

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCity of Philadelphia

Victim entityCity of Philadelphia

Incidentdiscovered May 24, 2023

Stated responseLaunched an investigation, with the assistance of third-party cybersecurity specialists

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov