HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedRansom DemandedRansom PaidCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)Government IDFinancial accountEmploymentMediumResolved

Horizon Actuarial

bd_53d47d81dff4b4e3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 12, 2021

Filed

Apr 15, 2022

To disclose

22 weeks

Affected

Not disclosed

Linked

42 filings

Confidence

64%

Full breach record for Horizon Actuarial →10 incidents on file

Horizon Actuarial Services, LLC experienced unauthorized access to two computer servers on November 10-11, 2021. The company discovered the incident on November 12, 2021, after receiving an email from a group claiming to have stolen personal data. The group demanded payment, which Horizon paid in exchange for an agreement to delete the data. The investigation confirmed that personal information, including names, addresses, Social Security numbers, and financial account details of benefit plan participants, was accessed. Horizon notified the FBI, secured its servers, and offered 12 months of identity monitoring to affected individuals. Notices began mailing on January 13, 2022.

J jump to incidentP pin to compareR raw source

California clockDiscovered Nov 12, 2021 → Notified Jan 13, 202262d ✗ CA 60-day late22 weeks discovery → filing

Incident timeline

undetected · 2 days

discovery → filing · 22 weeks / 154 days

Nov 10, 2021

Begins

Nov 12, 2021

Discovered

Apr 15, 2022

Filed

vs. sector median

+4 wks slower

This filing is one of 42 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_15610822e41f867e2022-05-10 · +25dVerified by operator
New Hampshire State AGbd_3140d98441aff7d22022-05-17 · +32dVerified by operator
California State AGbd_3343e2ff6ac461772022-05-18 · +33dVerified by operator
California State AGbd_0b8a8d1e0b2eb75a2022-05-24 · +39dVerified by operator

Show 6 more filings ↓up to 59d gap

Maine State AGbd_63ec2cad1130c87c2022-05-24 · +39dVerified
Hawaii State AGbd_a9ca9bbf0b626c3f2022-05-24 · +39dVerified by operator
New Hampshire State AGbd_797f45774e6898b62022-05-31 · +46dVerified by operator
Maine State AGbd_23ebf680da220cfe2022-06-09 · +55dVerified by operator
California State AGbd_531852585f7aeb412022-06-09 · +55dVerified by operator
New Hampshire State AGbd_a2e88f733f86ef672022-06-13 · +59dVerified by operator

Showing first 10 of 41 linked disclosures.

Name: Horizon Actuarial
norm: horizon actuarial
Domain: horizonactuarial.com

Name: Horizon Actuarial
norm: horizon actuarial
Domain: horizonactuarial.com
Industry: Professional Servicesllm

Discovered: Nov 12, 2021
Breach occurred: Nov 10, 2021 – Nov 11, 2021
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 13, 2022
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government IDFinancial accountEmployment
Attack vector: Unauthorized Access
MITRE ATT&CK: T1041 Exfiltration Over C2 ChannelT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Provided notice to the FBI

During the incident: Initiated efforts to secure its computer servers
Launched an investigation with the assistance of third-party computer specialists
Provided notice to the FBI
Negotiated with and paid the group in exchange for an agreement that they would delete and not distribute or otherwise misuse the stolen information
Provided notice of the event to the Fund beginning on January 13, 2022
Began mailing letters to individuals associated with benefit plans that authorized them to do so
Arranged for identity monitoring services for 12 months provided by Kroll
Changes made: Reviewing its existing security policies
Implemented additional measures to further protect against similar incidents moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 weeks(154 days from discovery to filing)
Compliance flags: CA 60-day late · 62d
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: Nov 12, 2021
→ Notified: Jan 13, 2022
62d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Nov 12, 2021 → Notified: Jan 13, 2022	62d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 4 states

View merged incident ↗

California State AGApr 15 · first · this page

California State AG+25d

New Hampshire State AG+32d

California State AG+33d

California State AG+39d

Maine State AG+39d

Hawaii State AG+39d

New Hampshire State AG+46d

Maine State AG+55d

California State AG+55d

New Hampshire State AG+59d

Pattern: first filing Apr 15 (CA), last Jun 13 (NH) — a 59-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 41 — the full spread may be wider.

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/sb24-552651
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 15, 2022
Raw hash: fe437498295410313b7db12e6db47d179e74e97dd9ae9109c88f056df430536b

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityHorizon Actuarial

Victim entityHorizon Actuarial

Incidentdiscovered Nov 12, 2021

Stated responseInitiated efforts to secure its computer servers

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov