WISP requirements in Missouri
Missouri requires a richer incident record than a simple resident-mailing checklist. A Policywright Missouri file should preserve unauthorized access plus acquisition, the five-year written no-risk determination if notice is not sent, the law-enforcement-delay documentation with officer and agency details if used, the minimum notice content, owner/licensee notification for maintained data, and the 1,000-consumer Attorney General and consumer-reporting-agency threshold decision.
Key facts
- Missouri firms should keep a written security program tied to the FTC Safeguards Rule and IRS taxpayer-data guidance.
- 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.
- 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.
Key takeaways
- Missouri firms should keep a written security program tied to the FTC Safeguards Rule and IRS taxpayer-data guidance.
- 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.
- 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.
- The WISP should preserve evidence, remediation steps, and annual review records.
Do Missouri tax preparers need a WISP?
Yes, if they are covered by the FTC Safeguards Rule or IRS tax-data security expectations, they should maintain a written plan. Missouri state breach-notice duties make incident planning especially important.
The WISP should start with federal obligations because the Safeguards Rule supplies the security-program structure.
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.
What is specific to Missouri?
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. The plan should identify who evaluates state notice, who contacts counsel, and where the decision record is kept.
State breach-notification law does not replace the Safeguards Rule. It adds a state-specific response layer when an incident affects Missouri 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.
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.
What should the WISP say?
It should describe real safeguards, assign responsibility, map vendors and systems, and include an incident-response path that reaches state-law review quickly.
For a small firm, the strongest plan is plain and evidence-backed: MFA records, backup tests, access reviews, training, vendor lists, and remediation dates.
The plan should never promise a control that is not actually in place.
| Topic | Missouri planning note | Evidence |
|---|---|---|
| Federal WISP | Use 16 CFR Part 314 as the program backbone | WISP and annual review |
| IRS tax data | Account for taxpayer records, PTIN practice, portals, and e-file workflows | System inventory and access list |
| Breach notice | 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. | Incident clock and counsel review record |
| Regulator path | 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. | Notification decision log |
| State statute | Mo. Rev. Stat. § 407.1500 | Source URL retained in page sources |
FAQ
Is this legal advice?
No. Policywright is a configurable template product, not a law firm and not legal advice. A qualified lawyer should review state-law reliance or breach-notification decisions.
Does a small firm still need a written plan?
Yes. The Safeguards Rule requires a written information security program for covered financial institutions, and IRS guidance tells paid tax preparers to maintain a written data security plan.
What if a control is not in place yet?
A serious WISP should not pretend. It should identify the gap, assign an owner, set a target date, and preserve a dated remediation record.
Does Missouri have its own WISP law?
This page does not claim a standalone Missouri WISP statute for every firm. It explains how federal WISP duties should be paired with Missouri breach-notification planning.
Who reviews Missouri breach notice?
The incident plan should route state-law decisions through qualified counsel and preserve any Missouri Attorney General regulator-notice analysis.
Sources
- FTC Safeguards Rule, 16 CFR Part 314 (eCFR)
- FTC, Safeguards Rule: What Your Business Needs to Know
- FTC, Safeguards Rule notification requirement now in effect (16 CFR 314.4(j), eff. May 13, 2024)
- IRS Publication 5708, Creating a Written Information Security Plan
- IRS Publication 4557, Safeguarding Taxpayer Data
- IRS Form W-12, PTIN Application and Renewal
- IRS Publication 1345, Handbook for Authorized IRS e-file Providers
- Missouri Revised Statutes § 407.1500
- Missouri Attorney General data breaches guidance
- Missouri Attorney General data breach checklist
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