HackingTechnologyHealthcareInformationVulnerability ExploitCapture Stored DataN-DayData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

OCUCO LIMITED

bd_834af0e66c3c8c79 · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 1, 2025

Filed

Jul 11, 2025

To disclose

14 weeks

Affected

66state residents only

Linked

5 filings

Confidence

65%

Full breach record for OCUCO LIMITED →2 incidents on file

Ocuco Ltd., an eye care technology company, notified Montana residents of a data breach involving protected health information and personal data (names). Unauthorized actors accessed non-production servers between March 28 and April 1, 2025, exploiting a vulnerability in third-party software. Ocuco engaged forensic experts, patched the vulnerability, and offered 24 months of credit monitoring.

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Incident timeline

undetected · 4 days

discovery → filing · 14 weeks / 101 days

Mar 28, 2025

Begins

Apr 1, 2025

Discovered

Jul 11, 2025

Filed

vs. sector median

4 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Washington State AGbd_95457d0ff244ea482025-07-11Verified
California State AGbd_d064c92f5f9d40172025-07-11Verified
Texas State AGbd_1a8b007fe58ca0e42025-07-15 · +4dVerified
Oregon State AGbd_9ce21f0d45a154ff2025-07-28 · +17dVerified by operator

Name: OCUCO LIMITED
norm: ocuco
Domain: ocuco.com

Name: OCUCO LIMITED
norm: ocuco
Domain: ocuco.com
Industry: TechnologyllmHealthcarellm

Discovered: Apr 1, 2025
Breach occurred: Mar 28, 2025 – Apr 1, 2025
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 11, 2025
Affected individuals: 66state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Misconfiguration
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Engaged external cybersecurity experts
Secured its virtual environment
Fully patched the vulnerability
Undertaken a general review of cybersecurity controls and procedures
Offering complimentary Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit score services at no charge
Providing proactive fraud assistance
Changes made: Fully patched the vulnerability
Undertaken a general review of cybersecurity controls and procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(101 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Washington State AGJul 11 · first

California State AGJul 11 · first

Montana State AGJul 11 · first · this page

Texas State AG+4d

Oregon State AG+17d

Pattern: first filing Jul 11 (WA), last Jul 28 (OR) — a 17-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://dojmt.gov/wp-content/uploads/2025/08/Consumer-notification-letter-30.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 11, 2025
Raw hash: 4f181dac5b81d940215d4b010792d23f8a031381cb14e4f9a40da156be9aba8e

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityOCUCO LIMITED

Victim entityOCUCO LIMITED

Incidentdiscovered Apr 1, 2025

Stated responseEngaged external cybersecurity experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov