Social EngineeringProfessional ServicesProfessional ServicesPhishingEmployee Data InvolvedIdentity (basic)Government IDEmploymentMediumContained

Mitchell International, Inc.

bd_24a4835c745f2af6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 3, 2016

Filed

Mar 14, 2016

To disclose

11 days

Affected

Not disclosed

Linked

3 filings

Confidence

64%

Full breach record for Mitchell International, Inc. →2 incidents on file

Mitchell International, Inc. disclosed a phishing incident where an external actor impersonated an executive to trick an employee into disclosing personal information (name, SSN, salary) of current and former employees. The breach occurred on February 24, 2016, and was discovered on March 3, 2016. No customer data or network intrusion was involved. The company offered two years of identity protection services.

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California clockDiscovered Mar 3, 2016 → Notified Mar 11, 20168d ✓ CA 60-day OK11 days discovery → filing

Incident timeline

undetected · 8 days

discovery → filing · 11 days

Feb 24, 2016

Begins

Mar 3, 2016

Discovered

Mar 14, 2016

Filed

vs. sector median

18 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

New Hampshire State AGbd_a9c35f562385692d2016-03-14Verified
Massachusetts State AGbd_877d84dcab80683b2016-03-15 · +1dVerified

Name: Mitchell International, Inc.
norm: mitchell international

Name: Mitchell International, Inc.
norm: mitchell international
Industry: Professional Servicesllm

Discovered: Mar 3, 2016
Breach occurred: Feb 24, 2016
Undetected for: 8 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 11, 2016
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDEmployment
Attack vector: Phishing
MITRE ATT&CK: T1566 Phishing
Threat actor: External
Regulator citations: Providing a sample copy of this letter to the California Attorney General’s office
Initial access: phishing_link

During the incident: Immediately began investigating what happened
Began to address this matter with the appropriate authorities
Providing identity protection services from AllClear ID for a period of two years
Changes made: Committed to making sure that we have security measures in place and effective training for our employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 days(11 days from discovery to filing)
Compliance flags: CA 60-day OK · 8d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Mar 3, 2016
→ Notified: Mar 11, 2016
8d 60 days (analyst band, pre-2026 discoveries) CA 60-day OK

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Mar 3, 2016 → Notified: Mar 11, 2016	8d	60 days (analyst band, pre-2026 discoveries)	CA 60-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGMar 14 · first

California State AGMar 14 · first · this page

Massachusetts State AG+1d

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.ca.gov/ecrime/databreach/reports/sb24-60473
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 14, 2016
Raw hash: 237c352aab3ccc35face2b9cf0955abb7a8fefefd4b64307237c64bf9eaa19c8

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMitchell International, Inc.

Victim entityMitchell International, Inc.

Incidentdiscovered Mar 3, 2016

Stated responseImmediately began investigating what happened

ComplianceCA 60-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov