SDCL § 27A-11A-1.2: Qualification of electronic document as signed document.

If a document is required to be signed pursuant to this chapter in order to be effective, an electronic document qualifies as a signed document:

(1) Without the person's physical signature, if an entity has an electronic signature system that meets a minimum security standard of two-factor authentication, such as name and password, or biometric identification that is uniquely reconcilable to a single actor and that results in a nonmodifiable document after the electronic signature is affixed, and the document indicates an electronic signature in some manner, such as

"s/____________________(name of signer)"; or

(2) With the person's physical signature, if the document is optically scanned into the entity's records.

Source: SL 2012, ch 149, § 28.