HackingProfessional ServicesProfessional ServicesStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedFinancial accountIdentity (basic)LowContained

Christopherson Business Travel

bd_8a26514da44c955c · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 21, 2025

Filed

May 22, 2025

To disclose

13 weeks

Affected

5state residents only

Linked

3 filings

Confidence

66%

Full breach record for Christopherson Business Travel →3 incidents on file

Christopherson Business Travel notified the NH AG of a Feb 21, 2025 network intrusion affecting ~5 NH residents. Unauthorized access resulted in copying of credit card info. CBT engaged forensic investigators, notified residents on May 9, 2025, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 13 weeks / 90 days

Feb 21, 2025

Begins

Feb 21, 2025

Discovered

May 22, 2025

Filed

vs. sector median

5 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_49fd8cea1ad7a1f42025-05-18 · +4dVerified
Maine State AGbd_8dd2c4ae1884423b2025-06-13 · +22dVerified

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: Christopherson Business Travel
norm: christopherson business travel
Industry: Professional Servicesllm

Discovered: Feb 21, 2025
Breach occurred: Feb 21, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 9, 2025
Affected individuals: 5state-resident count only
Data types: Financial accountIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General

During the incident: Immediately launched an investigation in consultation with outside cybersecurity professionals
Engaged external forensic investigators and data privacy professionals
Providing the affected residents with written notification
Offering the affected residents complimentary memberships with a credit monitoring service
Changes made: Implemented enhanced security safeguards to help protect against similar intrusions
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(90 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGMay 18 · first

New Hampshire State AG+4d · this page

Maine State AG+26d

Pattern: first filing May 18 (MA), last Jun 13 (ME) — a 26-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://mm.nh.gov/files/uploads/doj/remote-docs/christopherson-business-travel-20250522.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 22, 2025
Raw hash: c4b6fae17a55f321dc3765a36712a967637d4a90eee5e5c311006a4ace95dcf6

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityChristopherson Business Travel

Incidentdiscovered Feb 21, 2025

Stated responseImmediately launched an investigation in consultation with outside cybersecurity professionals

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov