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Sensitive User Switch

On a site with multiple admins, only allow user switching capacity to owner based on user name.

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php


	`<?php`
	`// Sensitive User Switch / Kiri Vadivelu / 2026`
	`add_filter( 'user_has_cap', function( $allcaps, $caps, $args, $user ) {`
	`if ( 'switch_to_user' === $args[0] ) {`
	`// Deny switching to everyone except site owner`
	`if ( $user->user_login !== 'ownerusername' ) {`
	`$allcaps['switch_users'] = false;`
	`}`
	`}`
	`return $allcaps;`
	`}, 9, 4 );`

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