HackingRetail & ConsumerRetailData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

SOTHEBY'S

bd_84da0953b8865c3d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 24, 2025

Filed

Oct 15, 2025

To disclose

12 weeks

Affected

2state residents only

Linked

4 filings

Confidence

66%

Full breach record for SOTHEBY'S →

Sotheby's reported an external system breach (hacking) on July 24, 2025, affecting 2 Maine residents. Data exfiltrated included names, SSNs, and financial account information. Sotheby's investigated with third-party specialists and federal law enforcement. Notices were sent on October 15, 2025, offering 12 months of credit monitoring via TransUnion.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jul 24, 2025 → Filed with AG Oct 15, 202583d ⏱ ME AG >30d12 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 12 weeks / 83 days

Jul 24, 2025

Begins

Jul 24, 2025

Discovered

Oct 15, 2025

Filed

vs. sector median

+2 wks slower

This filing is one of 4 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_45f84b00cb19d0752025-10-15Verified
Vermont State AGbd_4bd73b04199aa29b2025-10-15Verified
New Hampshire State AGbd_9d993dd442d3ccba2025-10-15Verified

Name: SOTHEBY'S
norm: sotheby s
Domain: sothebys.com

Name: SOTHEBY'S
norm: sotheby s
Domain: sothebys.com
Industry: Retail & Consumerllm

Discovered: Jul 24, 2025
Breach occurred: Jul 24, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 15, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: providing written notice of the Event to relevant regulatory authoritiesnotifying the three major credit reporting agencies, Equifax, Experian, and TransUnion
Initial access: exploit_public_facing

During the incident: Began an investigation to determine what data was involved
Downloaded and cataloging the data with instruction by third-party specialists
Comprehensive review of the data to determine what personal information was potentially contained within the data
Working with federal law enforcement
Identifying potentially impacted individuals for purposes of providing notice
Notified and worked with federal law enforcement
Notifying relevant regulatory authorities
Providing access to complimentary credit monitoring services for twelve (12) months, through TransUnion
Changes made: Assessing the security of Sotheby’s systems
Identifying and validating the data involved
Administrative and technical safeguards in place that protect information through layered defenses, strict access controls, secure connections, and advanced threat protections
Regularly patches systems
Tests internal incident response plans
Backs up critical services
Vets their vendors
Trains their workforce to ensure security is built into how they work every day
Continue to review these safeguards and consider further enhancements
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(83 days from discovery to filing)
Compliance flags: ME AG >30d · 83d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jul 24, 2025
→ Filed with AG: Oct 15, 2025
83d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jul 24, 2025 → Filed with AG: Oct 15, 2025	83d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGOct 15 · first

Vermont State AGOct 15 · first

New Hampshire State AGOct 15 · first

Maine State AGOct 15 · 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-a1252b4f8318/2e46843d-f16d-489d-905a-efee2175e06b.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 15, 2025
Raw hash: d3ec4d0a94f04970233fda6f276bf8abe2d1d4b6797889360a69522dd683d3b9

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitySOTHEBY'S

Victim entitySOTHEBY'S

Incidentdiscovered Jul 24, 2025

Stated responseBegan an investigation to determine what data was involved

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov