Dear [Customer/Client name],

We are contacting you about a security incident that may have involved some of your information. On or about [date], we [discovered / were notified of] [brief description of what happened].

What information may have been involved: [e.g., name, email address, phone number — list only what applies].

What we are doing: We took immediate steps to secure our systems, including [contained the incident, reset credentials, engaged security professionals, and notified the appropriate authorities].

What you can do: As a precaution, change your password and turn on two-factor authentication, watch your account statements and credit for unusual activity, and consider a free fraud alert or credit freeze. Helpful resources: IdentityTheft.gov, AnnualCreditReport.com, and IC3.gov.

We sincerely regret any concern this may cause. If you have questions, contact us at [phone] or [email].

Sincerely,
[Name], [Title]
[Company name]

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