MalwareProfessional ServicesProfessional ServicesRansomwareData ExfiltratedData EncryptedDelayed DiscoveryGovernment IDIdentity (basic)MediumContained

Bansley and Kiener, LLP

bd_911585320be84e19 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 10, 2020

Filed

Nov 30, 2021

To disclose

51 weeks

Affected

50state residents only

Linked

6 filings

Confidence

66%

Full breach record for Bansley and Kiener, LLP →3 incidents on file

Bansley and Kiener, L.L.P. notified the New Hampshire Attorney General of a cybersecurity incident involving unauthorized access to its systems between August 20 and December 1, 2020. The breach resulted in the encryption of systems (ransomware) and subsequent exfiltration of personal information, including names and Social Security numbers, of 50 New Hampshire residents. The firm discovered the initial encryption on December 10, 2020, and learned of the exfiltration on May 24, 2021. Notifications were mailed on November 30, 2021, offering one year of credit monitoring via Kroll.

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Incident timeline

undetected · 112 days

discovery → filing · 51 weeks / 355 days

Aug 20, 2020

Begins

Dec 10, 2020

Discovered

Nov 30, 2021

Filed

vs. sector median

+33 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_77b244465609bf862021-11-30Verified by operator
California State AGbd_d8742baa54ae80c02021-11-30Verified
HHS OCRbd_4bae8a61184e543c2021-12-03 · +3dVerified
HHS OCRbd_604e6a41f2e4e9722021-12-03 · +3dCandidate

Show 1 more filing ↓up to 3d gap

HHS OCRbd_cda0a2da4eccbe3a2021-12-03 · +3dVerified by operator

Name: Bansley and Kiener, LLP
norm: bansley and kiener
Domain: bk-cpa.com

Name: Bansley and Kiener, LLP
norm: bansley and kiener
Domain: bk-cpa.com
Industry: Professional Servicesllm

Discovered: Dec 10, 2020
Breach occurred: Aug 20, 2020 – Dec 1, 2020
Undetected for: 112 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 30, 2021
Affected individuals: 50state-resident count only
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified Attorney General John Formella

During the incident: Secured its systems
Engaged a cybersecurity firm to assist
Began mailing notification letters to 50 New Hampshire residents
Offering the New Hampshire residents access to complimentary one-year subscriptions to credit monitoring, fraud consultation, and identity restoration services through Kroll
Established a dedicated, toll-free call center
Changes made: Deploying watchguard
Firewall upgrades
Establishing and reviewing permissions for secure portals and Sharefile systems
Resetting user passwords
Transferring sensitive data to cloud storage
Educating its employees on cyber security best practices
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 51 weeks(355 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 4 states

View merged incident ↗

Montana State AGNov 30 · first

California State AGNov 30 · first

New Hampshire State AGNov 30 · first · this page

HHS OCR+3d

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://mm.nh.gov/files/uploads/doj/remote-docs/bansley-kiener-20211130.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 30, 2021
Raw hash: c4d4876145bdbc06db39e15082cacc563280fc57ddee9c8967910ff9bb98dec5

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityBansley and Kiener, LLP

Victim entityBansley and Kiener, LLP

Incidentdiscovered Dec 10, 2020

Stated responseSecured its systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov