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Latest / California / May 2018

Corporation Service Company

Corporation Service Company notified California AG on May 17, 2018 of a data breach, which occurred on Nov 25, 2017. Data exposed: Social Security number, Financial / bank account, Usernames / passwords, Email address, Name.

All 6 filings by Corporation Service Company, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Corporation Service Company
Source
California AG · source record
Date reported
May 17, 2018
Date(s) of breach
Saturday, November 25, 2017
Residents affected
Not published by this source
Data exposed
Social Security number Financial / bank account Usernames / passwords Email address Name
Notice letter
Sample notice (PDF)
Discovered
Apr 5, 2018, as stated in the letter
"On April 5, 2018, CSC determined an unknown actor exfiltrated a database table from its network that contained certain personally identifiable information provided by CSC’s clients."
Days to notice
42 days from discovery (Apr 5, 2018) to the California record (May 17, 2018). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter
12 months of credit or identity monitoring through Experian
Third party
The letter attributes the incident to a vendor or service provider
First seen by BreachTally
2026-10-30 16:14 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 16:14 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by Corporation Service Company

OrganizationSourceStateReportedResidents affectedData exposed
Corporation Service Company Texas AG TX Aug 14, 2026 2,481 Social Security numberDriver's license / state IDPassport numberFinancial / bank account+2
Corporation Service Company Vermont AG VT Aug 13, 2026 23 Social Security number
Corporation Service Company California AG CA Aug 13, 2026 Not published In the letter (PDF)
Corporation Service Company Massachusetts OCABR MA Aug 13, 2026 500 Social Security numberDriver's license / state ID
Corporation Service Company Oregon DOJ OR May 17, 2018 94,148 Not stated

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.