SDCL § 55-19-5: Terms-of-service agreement.

This chapter does not change or impair the right of any custodian or user under a terms-of-service agreement to access and use digital assets of the user.

This chapter does not give a fiduciary or designated recipient any new or expanded rights other than those held by the user for whom, or for whose estate, the fiduciary or designated recipient acts or represents.

A fiduciary's or designated recipient's access to digital assets may be modified or eliminated by a user, by federal law, or by a terms-of-service agreement if the user has not provided direction under § 55-19-4.