Mo. Rev. Stat. » Chapter 569
Missouri Revised Statutes

Mo. Rev. Stat. § 569.099 (2026)

Tampering with computer users

✓ laws through the 2026 session (checked Sept. 2026)
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  569.099.  Tampering with computer users — penalties. — 1.  A person commits the offense of tampering with computer users if he or she knowingly and without authorization or without reasonable grounds to believe that he or she has such authorization:

  (1)  Accesses or causes to be accessed any computer, computer system, or computer network; or

  (2)  Denies or causes the denial of computer system services to an authorized user of such computer system services, which, in whole or in part, is owned by, under contract to, or operated for, or on behalf of, or in conjunction with another.

  2.  The offense of tampering with computer users is a class A misdemeanor unless the offense is committed for the purpose of devising or executing any scheme or artifice to defraud or to obtain any property, the value of which is seven hundred fifty dollars or more, in which case tampering with computer users is a class E felony.

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(L. 1982 H.B. 1454, et al. § 4, A.L. 1987 H.B. 208, A.L. 2002 H.B. 1888, A.L. 2014 S.B. 491)

Effective 1-01-17

CROSS REFERENCE:

Civil action for tampering with computer users, expenses and attorney fees, 537.525

Notes of Decisions
Cited in 4 cases (2 in the last 5 years), 2014–2022 · leading case: Doe v. Isom, 429 S.W.3d 436 (Mo. Ct. App. 2014).
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Doe v. Isom, 429 S.W.3d 436 (Mo. Ct. App. 2014). · cites it 4× “035; and (4) one count of tamper *438 ing with computer users, in violation of Section 569.099. On March 24, 2009, Doe pled guilty in the Circuit Court of St.”
Shuttlewagon, Inc. v. Scott Higgins, 628 S.W.3d 185 (Mo. Ct. App. 2021). · cites it 4× “095 to section 569.099 is established. However, section 537.”
John Doe v. Col. Daniel Isom, No. ED99707 (Mo. Ct. App. Feb. 18, 2014). · cites it 4× “035; and (4) one count of tampering with computer users, in violation of Section 569.099. On March 24, 2009, Doe pled guilty in the Circuit Court of St.”
Weisman v. Barnes Jewish Hosp., No. 4:19-cv-00075 (E.D. Mo. Jan. 5, 2022). · cites it 2× “095 (tampering with computer data) or § 569.099 (tampering with computer users), both of which exclude conduct unless taken “without authorization or without reasonable grounds to believe that he or she has such authorization.”
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