Cybersecurity event investigation, procedures.
Mo. Rev. Stat. § 375.1407
in effect375.1407. Cybersecurity event investigation, procedures. — 1. If the licensee learns that a cybersecurity event has or may have occurred, the licensee, or an outside vendor or service provider designated to act on behalf of the licensee, shall conduct a prompt investigation.
2. During the investigation, the licensee, or an outside vendor or service provider designated to act on behalf of the licensee, shall, at a minimum, determine as much of the following information as practicable:
(1) Determine whether a cybersecurity event has occurred;
(2) Assess the nature and scope of the cybersecurity event;
(3) Identify any nonpublic information that may have been involved in the cybersecurity event; and
(4) Perform or oversee reasonable measures to restore the security of the information systems compromised in the cybersecurity event in order to prevent further unauthorized acquisition, release, or use of nonpublic information in the licensee's possession, custody, or control.
3. If the licensee learns that a cybersecurity event has or may have occurred in a system maintained by a third-party service provider, the licensee shall complete the steps listed in subsection 2 of this section or confirm and document that the third-party service provider has completed those steps.
4. The licensee shall maintain records concerning all cybersecurity events for a period of at least three years from the date of the cybersecurity event and shall produce those records upon demand of the director.
(L. 2025 H.B. 974, et al.) Effective 1-01-26; see § 375.1427
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://revisor.mo.gov/main/OneSection.aspx?section=375.1407Fetched: 10/17/2026