The verse that can be recited for protection against evil machinations is

Explanation

Allah, the Ever-Living, the Self-Subsisting by Whom all subsist, there is no god but He. Neither slumber seizes Him, nor sleep; to Him belongs all that is in the heavens and all that is in the earth. Who is there who might intercede with Him save with His leave?
He knows what lies before them and what is hidden from them, whereas they cannot attain to anything of His knowledge save what He wills them to attain. His Dominion overspreads the heavens and the earth, and their upholding wearies Him not. He is All-High, All-Glorious. Irrespective of the number of gods or objects of worship set up by ignorant people, the fact remains that godhead in its entirety, belongs exclusively to the Eternal Being, Who is indebted to no one for His existence. In fact, He is not only self-existent, but upon Him rests the entire order of the universe. He alone wields all sovereign authority over His dominion. None shares either His attributes or His power and might, and no one has the same claims against the creatures as He. Hence, if anywhere in the heavens or the earth someone sets up anything or anybody as an object of worship and service (ilah) either instead of or in addition to the One True God this amounts to declaring war on reality.