age
South Dakota has required age verification for websites with content harmful to minors since July 2025, a law bolstered in public officials' view by the U.S. Supreme Court's June 2025 ruling in Free Speech Coalition v. Paxton. App store age verification bills have failed twice: SB 180 was rejected in committee in 2025, and HB 1275 (2026) passed the House 50 to 17 but was defeated in a Senate committee in March 2026. South Dakota has not enacted a social media minor-access law or a design code law as of this date.
privacy
South Dakota has no general controller or processor personal-data statute, and no comprehensive bill is even pending; the chatbot-disclosure bills in this session (SB 168, SB 170) both died and are unrelated to a comprehensive regime. South Dakota instead has two enacted sectoral instruments.
The Genetic Data Privacy Act, SDCL secs. 37-24-59 to 37-24-64 (SB 49, SL 2026 ch. 164), signed March 23, 2026 and in force since July 1, 2026, requires opt-in express consent for a direct-to-consumer genetic testing company to collect, disclose, or use a consumer's genetic data or biological sample, and gives the consumer access, deletion, and destruction rights; it does not use the term biometric anywhere and treats genetic data as its own category, not interchangeable with biometric data.
South Dakota's breach-notification statute, SDCL secs. 22-40-19 to 22-40-26 (SL 2018 ch. 135), in force since July 1, 2018, folds biometric data into personal information only narrowly, when paired with an employer-assigned identification number and used for authentication, and requires Attorney General notice above a threshold of 250 affected residents, not 250,000 as an initial WebSearch pass on this research incorrectly reported.
That breach statute deems a notice violation a deceptive act under the state's general Deceptive Trade Practices and Consumer Protection chapter, which independently arms any adversely affected person with a private right of action; unlike Pennsylvania's, South Carolina's Chapter 80, or West Virginia's equivalents, South Dakota's Attorney General enforcement clause contains no exclusivity language closing that route, so this document leaves whether the deeming-plus-UDAP chain actually arms a private plaintiff for a notice violation as an open question rather than a settled finding, since no case construing the two sections together was found.