BreachCensus

SiteOne Landscape Supply, Inc.

RetailUnited States of America

SiteOne Landscape Supply, Inc. is a retail organisation in California. It appears on the Massachusetts Attorney General breach-notification register and the California Attorney General breach-notification register with 1 confirmed incident (2 filings); the most recent notice was filed on October 30, 2020.

Headquarters
Roswell, United States
LEI
5299008LX7SBD4HIAU03
Wikidata
Q106240810

Data as of September 6, 2026.

Confirmed incident

Filed in CA and MA

The same incident was filed separately with 2 jurisdictions within a few days of each other (CA and MA) — shown here as one incident.

Occurred
July 2, 2020
Disclosed
October 30, 2020

Timeline

  1. October 30, 2020
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  2. October 30, 2020
    Reported to regulator Regulator

    MA AG breach notification: 278 Massachusetts residents affected

    source
What a California notice means

Governed by Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

What a Massachusetts notice means

Governed by M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗