Data Breach Notifications

Entity Information

  • Type of Organization: Non-Profit
  • Entity Name: Sierra Club
  • Street Address: 2101 Webster St., Suite 1300
  • City: Oakland
  • State, or Country if outside the US: CA
  • Zip Code: 94612

Submitted By

  • Name: Angelina Freind
  • Title: Partner
  • Firm name (if different than entity): Mullen Coughlin LLC
  • Telephone Number: (267) 230-4782
  • Email Address: afreind@mullen.law
  • Relationship to entity whose information was compromised: Counsel

Breach Information

  • Total number of persons affected (including residents): 813
  • Total number of Maine residents affected: 10
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified:
  • Date(s) Breach Occured: 02/09/2023
  • Date Breach Discovered: 05/09/2023
  • Description of the Breach:
    • Insider wrongdoing
  • Information Acquired - Name or other personal identifier in combination with: Social Security Number

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: 10/04/2023
  • Copy of notice to affected Maine residents: Sierra Club - Notice of Data Event - ME.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 of Experian Identityworks credit monitoring and identity restoration services.