Idaho Code § 41-2610
Any insurer giving any bond or recognizance referred to in sections 41-2604 through 41-2608 shall be estopped, in any proceeding to enforce the liability which it has assumed to incur, to deny its corporate power to execute such instrument or assume such liability.
[41-2610, added 1961, ch. 330, sec. 563, p. 645.]