Missouri breach notification lookup
Use this Missouri breach notification lookup as an incident-triage clock, not as legal advice. It shows the fields Policywright has verified for Missouri: statute citation, stated notification deadline, residents or regulators who may need notice, consumer-reporting-agency threshold, consumer-notice trigger, official source links, and the last verified date.
Last verified 2026-08-13. Not legal advice.
| Field | Verified value | Use in the incident file |
|---|---|---|
| Statute | Mo. Rev. Stat. § 407.1500 | Link the decision record to the official citation |
| Deadline | Consumer notice without unreasonable delay after discovery or notification, consistent with law-enforcement and scope/restoration needs; data maintainers notify owners or licensees immediately after discovery; law-enforcement delay must be written or contemporaneously documented and notice resumes without unreasonable delay after clearance; AG and CRA notice applies for more than 1,000 consumers at one time. | Sort multi-state response work by the shortest stated clock |
| Residents | Missouri consumers whose personal information maintained in computerized form was subject to unauthorized access and unauthorized acquisition that compromises the security, confidentiality, or integrity of the personal information, unless a documented investigation determines identity theft or other fraud is not reasonably likely. | Identify whether affected residents receive notice |
| Regulator | Notify the Missouri Attorney General’s office without unreasonable delay when notice is provided to more than 1,000 consumers at one time, with the timing, distribution, and content of the notice; the Attorney General also has exclusive authority to bring certain enforcement actions under § 407.1500. | Record AG or regulator portal review |
| Consumer-reporting agencies | Notify all nationwide consumer reporting agencies without unreasonable delay when notice is provided to more than 1,000 consumers at one time, including the timing, distribution, and content of the notice. | Check whether the affected count crosses a CRA threshold |
| Consumer trigger | Missouri requires Attorney General and nationwide consumer reporting agency notice without unreasonable delay when a person provides breach notice to more than 1,000 consumers at one time, including the timing, distribution, and content of the consumer notice. | Tie notice analysis to the statutory trigger, not an unsupported assumption |
What this state lookup shows
Missouri fields are rendered from the verified state dataset only when the field exists. No deadline is inferred when the data does not state one.
Mo. Rev. Stat. § 407.1500 is the statute citation retained for this lookup, and the state page links to the official statute source when available.
Missouri requires Attorney General and nationwide consumer reporting agency notice without unreasonable delay when a person provides breach notice to more than 1,000 consumers at one time, including the timing, distribution, and content of the consumer notice. The consumer trigger matters because the clock usually starts only after a legally meaningful incident analysis, not merely because an IT alert appeared.
The last verified date for this Missouri lookup is 2026-08-13. Use that date as a prompt to refresh counsel review before making a live notification decision.
How to use it during an incident
Start with containment and evidence preservation, then identify affected resident states and compare the shortest stated deadline first.
A practical incident file should record discovery time, encryption status, systems involved, affected consumer count, vendor involvement, and the person responsible for counsel review.
For Missouri, the WISP should say where the notification decision log lives, who contacts counsel, who checks the regulator portal, and who approves any consumer notice before it is sent.
This lookup pairs with the Incident Response Plan because the plan owns the workflow: intake, escalation, containment, preservation, notice analysis, communications, and final review.
How it fits the WISP
A WISP should not guess at state-law outcomes; it should make the breach-review path fast, documented, and source-linked.
Pair this lookup with the Missouri WISP requirements page so the firm's written program names the state-aware incident path before an event happens.
Policywright keeps the breach clock separate from the policy packet: the lookup tells you what to review, while the generated packet assigns owners, evidence records, remediation steps, and review cadence.
Not legal advice. A qualified lawyer should confirm whether the incident facts meet a statutory definition, whether substitute notice or regulator notice applies, and whether another state or federal rule changes the timeline.
FAQ
Is this Missouri lookup legal advice?
No. It is a source-linked lookup for incident planning and should be reviewed with qualified counsel before relying on it in a live notification decision.
What if affected residents live outside Missouri?
Use the multi-state lookup page and include every state where affected residents may live. The comparison table sorts selected states by the shortest stated deadline first.
Does this replace the FTC Safeguards Rule notice analysis?
No. State notice review is separate from the federal Safeguards Rule and 16 CFR 314.4(j) analysis. A serious incident file should preserve both review tracks.