Social EngineeringFinancial ServicesFinancePhishingData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

SourceOne Insurance Group

bd_24d77a61ecaf9bc0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 11, 2021

Filed

Aug 30, 2021

To disclose

16 weeks

Affected

1state residents only

Confidence

66%

Full breach record for SourceOne Insurance Group →

SourceOne Insurance Group notified the NH AG of a phishing incident affecting one NH resident. Unauthorized access to employee email accounts occurred between April 20 and May 11, 2021. The attacker accessed a resident's name and SSN. SourceOne reset passwords, engaged forensic investigators, and reported to the FBI. One resident was notified on August 30, 2021, and offered credit monitoring.

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Incident timeline

undetected · 21 days

discovery → filing · 16 weeks / 111 days

Apr 20, 2021

Begins

May 11, 2021

Discovered

Aug 30, 2021

Filed

vs. sector median

+8 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Lewis Brisbois Bisgaard & Smith, PLLC
norm: lewis brisbois bisgaard smith

Name: SourceOne Insurance Group
norm: sourceone insurance
Industry: Financial Servicesllm

Discovered: May 11, 2021
Breach occurred: Apr 20, 2021 – May 11, 2021
Undetected for: 21 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 30, 2021
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General's Office
Initial access: phishing_link

During the incident: Notified its information technology service provider, who reset the user’s password, as well as passwords for all other users in the email tenant
Launched an investigation with the assistance of a leading, independent forensics firm
Conducted a comprehensive review of the contents of the accounts
Notified its employer-clients of the incident
Reported this matter to the Federal Bureau of Investigation
Changes made: Offered twelve (12) months of complimentary credit monitoring and identity theft restoration services through IDX
Took steps to help prevent a similar incident from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(111 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/sourceone-insurance-20210830.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 30, 2021
Raw hash: a1fc44b280b7360534dffdcd37464cc2a88c1daee3b9e14033599edc570f164e

Reporting entityLewis Brisbois Bisgaard & Smith, PLLC

Victim entitySourceOne Insurance Group

Incidentdiscovered May 11, 2021

Stated responseNotified its information technology service provider, who reset the user’s password, as well as passwords for all other users in the email tenant

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov