HackingProfessional ServicesFinancial ServicesProfessional ServicesDelayed DiscoveryCustomer Data InvolvedIdentity (basic)Government IDCritical

Aon

bd_ee7cfc9886fcd713 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Feb 25, 2022

Filed

Jun 24, 2022

To disclose

17 weeks

Affected · nationwide

145,889424 in this filing

Linked

14 filings

Confidence

65%

Full breach record for Aon →11 incidents on file

Aon Plc, a professional services firm, reported an external system breach that occurred on December 29, 2020, but was not discovered until February 25, 2022. The incident, described as hacking, affected 145,889 individuals and compromised names along with driver's license or non-driver ID numbers. The company began notifying affected individuals on May 27, 2022, and offered 24 months of complimentary credit monitoring and identity theft protection services through Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Feb 25, 2022 → Filed with AG Jun 24, 2022119d ✗ ME AG >90d17 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.

Incident timeline

undetected · 423 days

discovery → filing · 17 weeks / 119 days

Dec 29, 2020

Begins

Feb 25, 2022

Discovered

Jun 24, 2022

Filed

vs. sector median

1 wks faster

This filing is one of 14 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitedispossessorbd_d4e9fb69d737f7a62022-07-03 · +9dVerified by operator

Regulatory filings (9) · sorted by filing gap

Maine State AGbd_83344b1fed7fdb7a2022-07-01 · +7dCandidate
New Hampshire State AGbd_5ba6400246ccb57f2022-06-13 · +11dVerified by operator
Montana State AGbd_f3bea3092e6d8ecc2022-06-13 · +11dVerified by operator
New Hampshire State AGbd_bed97e68b6fb0b6c2022-05-31 · +24dVerified by operator

Show 5 more filings ↓up to 29d gap

Indiana State AGbd_fde32f8598ecaa8b2022-05-27 · +28dVerified
HHS OCRbd_1659c519cbbc91942022-05-26 · +29dVerified by operator
Oregon State AGbd_a34b45e6fa897e082022-05-26 · +29dVerified
California State AGbd_a3a4b3bd3ddac8fc2022-05-26 · +29dVerified
Maine State AGbd_bdef13158191852d2022-05-26 · +29dCandidate

Showing first 10 of 13 linked disclosures.

Name: Aon
norm: aon
Domain: aon.com

Name: Aon
norm: aon
Domain: aon.com
Industry: Professional ServicesllmFinancial Servicesllm

Discovered: Feb 25, 2022
Breach occurred: Dec 29, 2020
Undetected for: 423 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 27, 2022
Affected individuals: 145,889state + nationwide
Data types: Identity (basic)Government ID
Data elements: Driver's licence number
Attack vector: Unauthorized Access
Threat actor: External

During the incident: Sent written notification to affected consumers
Aon is providing 24 months of complimentary credit monitoring and identity theft protection services from Experian.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(119 days from discovery to filing)
Compliance flags: ME AG >90d · 119dME resident >60d · 91d
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: Feb 25, 2022
→ Filed with AG: Jun 24, 2022
119d 90 days ME AG >90d
Maine
Discovered: Feb 25, 2022
→ Notified: May 27, 2022
91d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 25, 2022 → Filed with AG: Jun 24, 2022	119d	90 days	ME AG >90d
Maine	Discovered: Feb 25, 2022 → Notified: May 27, 2022	91d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 7 states

View merged incident ↗

HHS OCRMay 26 · first

Oregon State AGMay 26 · first

California State AGMay 26 · first

Maine State AGMay 26 · first

Indiana State AG+1d

New Hampshire State AG+5d

New Hampshire State AG+18d

Montana State AG+18d

Maine State AG+29d · this page

Maine State AG+36d

Pattern: first filing May 26 (IL), last Jul 1 (ME) — a 36-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 13 — the full spread may be wider.

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/d3a2cb3e-eab7-4cae-a857-16c532024b6d.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 24, 2022
Raw hash: 55b4c3d2844ee7363bb5e81e8155db1821ce67e6e81da487c5f05a4653aabd69

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityAon

Victim entityAon

Incidentdiscovered Feb 25, 2022

Stated responseSent written notification to affected consumers

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov