Data Breach Notifications

Entity Information

  • Type of Organization: Financial Services
  • Entity Name: Hennessy Advisors, Inc.
  • Street Address: 7250 Redwood Blvd, Suite 200
  • City: Novato
  • State, or Country if outside the US: CA
  • Zip Code: 94945

Submitted By

  • Name: Lindsey Smith
  • Title: Partner
  • Firm name (if different than entity): Constangy, Brooks, Smith, & Prophete LLP
  • Telephone Number: (706) 247-3613
  • Email Address: ldsmith@constangy.com
  • Relationship to entity whose information was compromised: Legal Counsel

Breach Information

  • Total number of persons affected (including residents): 12643
  • Total number of Maine residents affected: 48
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified:
  • Date(s) Breach Occured: 03/30/2025
  • Date Breach Discovered: 02-05-2025
  • Description of the Breach:
    • External system breach (hacking)
  • Information Acquired - Name or other personal identifier in combination with:

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: 02/23/2026
  • Copy of notice to affected Maine residents: Hennessy_Advisors_-_Consumer_Notification_Letter_Template.pdf
  • Date of any previous (within 12 months) breach notifications:
  • Were identity theft protection services offered: Yes
  • If yes, please provide the duration, the provider of the service and a brief description of the service: 12 months, IDX, single bureau monitoring