NEW YORKMalwareHealthcareProfessional ServicesHealthcareRansomwareBusiness Associate (HIPAA)Customer Data InvolvedData EncryptedHealth (basic)Financial accountHighResolved

BST & CO. CPAS, LLP

bd_395dfa1f41dabd9d · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 7, 2019

Filed

Feb 16, 2020

To disclose

10 weeks

Affected

170,000

Linked

4 filings

Confidence

98%

Full breach record for BST & CO. CPAS, LLP →

BST & Co. CPAs, LLP, a New York public accounting and management consulting firm acting as a HIPAA business associate, reported to HHS OCR on 2020-02-16 a Hacking/IT Incident affecting 170,000 individuals. On December 7, 2019, BST discovered part of its network was infected with ransomware, impacting PHI of its covered entity client stored on a Network Server. OCR found BST failed to conduct an adequate risk analysis. BST settled for $175,000 and entered a two-year corrective action plan.

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HIPAA clock✓ HHS notified10 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 · 10 weeks / 71 days

Dec 7, 2019

Begins

Dec 7, 2019

Discovered

Feb 16, 2020

Filed

vs. sector median

2 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Montana State AGbd_90095c1200eb1d112020-02-14 · +2dVerified
Massachusetts State AGbd_f7e7633fab25d7782020-02-25 · +9dVerified
HHS OCR enforcementbd_b1c08cec54ba479d2025-08-18 · +2010dVerified by operator

Name: BST & CO. CPAS, LLP
norm: bst co cpas
Industry: Business Associate

Name: BST & CO. CPAS, LLP
norm: bst co cpas
Industry: Business Associate
Industry: Healthcaresource defaultProfessional Servicesllm

Discovered: Dec 7, 2019
Breach occurred: Dec 7, 2019
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 170,000nationwide
Data types: Health (basic)Financial account
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Business associate
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: HHS OCR investigation initiated following breach report filed 2020-02-16Settlement reached with HHS OCR; $175,000 civil monetary paymentTwo-year corrective action plan monitored by OCR

During the incident: Paid $175,000 to HHS OCR
Agreed to implement corrective action plan monitored by OCR for two years
Changes made: Conduct accurate and thorough risk analysis of ePHI risks and vulnerabilities
Develop and implement a risk management plan
Develop, maintain, and revise written HIPAA Privacy and Security Rules policies and procedures
Augment HIPAA and security training program with annual training for all workforce members
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(71 days from discovery to filing)
Compliance flags: HHS notified
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
HIPAA
Discovered: Dec 7, 2019
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: Dec 7, 2019 → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

Montana State AGFeb 14 · first

HHS OCR+2d · this page

Massachusetts State AG+11d

HHS OCR enforcement+2012d

Pattern: first filing Feb 14 (MT), last Aug 18 — a 2012-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Feb 16, 2020
Raw hash: 5fa5869fdc198e6919ff3902fd7703402258d0565415a4b6778bb50944886592

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Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityBST & CO. CPAS, LLP

Victim entityBST & CO. CPAS, LLP

Incidentdiscovered Dec 7, 2019

Stated responsePaid $175,000 to HHS OCR

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing