HackingProfessional ServicesProfessional ServicesStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedPIIIdentity (basic)Government IDMediumContained

Katz, Sapper & Miller (KSM)

bd_6036b95abbf54646 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 5, 2019

Filed

Feb 8, 2019

To disclose

5 weeks

Affected

6state residents only

Linked

3 filings

Confidence

66%

Full breach record for Katz, Sapper & Miller (KSM) →

Katz, Sapper & Miller (KSM) notified clients of a security issue involving its third-party file-sharing service, Citrix ShareFile. An unauthorized third party potentially accessed client data stored in the ShareFile environment. KSM determined the issue on January 5, 2019, and sent notifications on February 8, 2019. No confirmed evidence of compromise was found, but credit monitoring services were offered.

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Incident timeline

discovery → filing · 5 weeks / 34 days

Jan 5, 2019

Discovered

Feb 8, 2019

Filed

vs. sector median

14 wks faster

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

New Hampshire State AGbd_a7364f7459edc8fe2019-02-08Verified
Massachusetts State AGbd_c226bc8ed4497b4e2019-02-08Verified

Name: Katz, Sapper & Miller (KSM)
norm: katz sapper miller ksm

Name: Katz, Sapper & Miller (KSM)
norm: katz sapper miller ksm
Industry: Professional Servicesllm

Discovered: Jan 5, 2019
Materiality determined: —
Notification sent: Feb 8, 2019
Affected individuals: 6state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Initial access: supply_chain

During the incident: Took immediate steps to remediate our third-party system
Enhanced security protocols
Conducted an internal investigation
Arranged for you to enroll, at no cost to you, in an online credit monitoring service (myTrueIdentity) for 12 months
Changes made: Enhanced security protocols
Third-party service provider Citrix has implemented a mandatory password reset for all users
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(34 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGFeb 8 · first

Massachusetts State AGFeb 8 · first

Montana State AGFeb 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://dojmt.gov/wp-content/uploads/KSM-Consumer-Breach-Notification.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 8, 2019
Raw hash: 4a53fdc646cbf2022e5f3879343e26070e8618346632377ab9e4b79939ba75a5

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityKatz, Sapper & Miller (KSM)

Victim entityKatz, Sapper & Miller (KSM)

Incidentdiscovered Jan 5, 2019

Stated responseTook immediate steps to remediate our third-party system

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov