755 ILCS 6/11-30: Attribution and effect of electronic record and electronic signature.

(a) An electronic nontestamentary estate planning document or electronic signature on an electronic nontestamentary estate planning document is attributable to a person if it was the act of the person. The act of the person may be shown in any manner, including by showing the efficacy of a security procedure applied to determine the person to which the electronic record or electronic signature was attributable.

(b) The effect of attribution to a person under subsection (a) of a document or signature is determined from the context and surrounding circumstances at the time of its creation, execution, or adoption and as provided by other law.