Security Optimizer – The All-In-One WordPress Protection Plugin


Bulletproof your website security in a few clicks against a range of security breaches, including brute-force attacks, malware threats and bots, with our free WordPress security plugin – Security Optimizer.

Proactively monitor your site’s security to detect any suspicious activity and take immediate actions to protect your site and prevent further damage with these essential features:

  • Enable 2FA (Two-Factor Authentication) for an extra layer of website security
  • Set Beperk login pogingen to deter malicious login attempts and brute-force attacks
  • Change your default login URL to Custom Login URL to avoid attacks
  • Activate Geavanceerde XSS bescherming to fortify your website against malicious attacks
  • Systeem mappen vergrendelen en beveiligen to ensure no unauthorized or malicious scripts can be executed in your system folders
  • Uitschakelen thema’s & plugins editor to safeguard your website from unauthorized access via the WordPress editor
  • Verberg WordPress versie effortlessly, keeping it hidden from prying eyes
  • Use Activiteiten log to monitor your site and quickly prevent malicious actions
  • Post-Hack Actions to take immediate actions and prevent further damages

Developed by the website security experts at SiteGround and trusted by over 900,000 webmasters for its robust security shield and ease of use to safeguard WordPress applications from possible attacks on any hosting platform.


Monster Awards 2022: Best WordPress Security Plugin 🥇
Monster Awards 2021: Best WordPress Security Plugin 🥇

Plugin Video

Plugin Tutorial

Unveil the vast array of features and unleash the full potential of our security plugin in our Security Optimizer Tutorial.


Safeguard your WordPress application using our powerful site security toolset. Our comprehensive features are specifically designed to strengthen your website’s defenses against malware, exploits, and various malicious activities. With these tools at your disposal, you can ensure the utmost bot, malware and brute force protection for your website:

Systeem mappen vergrendelen en beveiligen

Ensure the maximum security for your application’s system folders by preventing the execution of any unauthorized or malicious scripts. The Lock and Protect System Folders feature acts as a powerful shield against potential threats.

Verberg WordPress versie

Protect your website from mass attacks by hiding the WordPress version, which helps to mitigate version-specific vulnerabilities.

Uitschakelen thema’s & plugins editor

Enhance the security of your WordPress admin area by disabling the Themes & Plugins Editor, preventing potential coding errors and unauthorized access through the editor.

XML RPC uitschakelen

Beperk mogelijke beveiligingsrisico’s door het uitschakelen van het XML-RPC protocol, dat is misbruikt bij verschillende aanvallen. Houd er rekening mee dat het uitschakelen van XML-RPC de communicatie van WordPress met externe systemen beperkt. We raden aan deze functie in te schakelen, tenzij je er specifiek behoefte aan hebt.

RSS- en ATOM feeds uitschakelen

Prevent content scraping and specific attacks on your site by disabling RSS and ATOM feeds. Unless you have readers accessing your site via RSS readers, it is recommended to keep this feature enabled.

Geavanceerde XSS bescherming

Add an extra layer of website security against cross-site scripting (XSS) attacks by enabling Advanced XSS Protection, bolstering the overall security of your website.

Delete Default Readme.html

Eliminate potential vulnerabilities by deleting the default readme.txt file, which contains information about your website. By removing this file, you reduce the risk of your site being listed in vulnerable sites targeted by hackers.

Login Security

Aangepaste login URL

Personalize your login URL to thwart potential attacks and create a strong entry point. Bid farewell to the default login URL and embrace a bespoke path of your choosing. Additionally, you have the freedom to modify the default sign-up URL as well.

Login toegang

Restrict login page access to specific IP addresses or IP ranges, effectively thwarting malicious login attempts and deterring brute force attacks.

2FA (Two-Factor Authentication)

Immerse your website in an impenetrable shield of security with 2FA. This formidable feature demands that all admin users furnish a unique token, generated exclusively through the Google Authentication application, during the login process.

Algemene gebruikers namen uitschakelen

Don’t fall victim to predictable security breaches! The use of common usernames, such as ‘admin,’ poses a significant threat to the integrity of your website. Activate this option to disable the creation of common usernames. If any weak usernames already exist, we’ll prompt you to provide new, stronger alternatives.

Beperk login pogingen

Maintain control over unauthorized access attempts with Limit Login Attempts. Set a specific threshold for the number of login failures users can endure before consequences arise. After reaching the limit, the IP address associated with the unsuccessful login attempts will be blocked for one hour. Persistent failures will result in longer restrictions, starting with 24 hours and escalating to a week.


Monitor your website and login page for unauthorized visitors and brute force attempts to prevent malicious actions

Activiteiten log

The Activity Log page provides you with a comprehensive view of the activities performed by registered, unknown, and blocked visitors. It allows you to closely monitor any suspicious behavior and take appropriate actions in case of a compromised user, plugin, or hacking attempt. You can leverage the quick tools available to swiftly block future attempts.

Weekly Security Reports

Receive a weekly traffic summary for your website directly to your inbox. This Weekly Security Report compiles data on both bot and human traffic, along with details about blocked login and visit attempts to proactively monitor traffic and promptly identify suspicious activity.


Take immediate measures to protect your website if you suspect a compromise and prevent further damage. Here, you’ll find convenient solutions to address the situation effectively:

Installeer alle gratis plugins opnieuw

In the event of a hack, utilizing the Reinstall All Free Plugins feature can help mitigate potential harm. This action reinstalls all of your free plugins, reducing the likelihood of additional exploits or the reuse of malicious code.

Alle gebruikers uitloggen

To prevent any further unauthorized activities by users or attackers, you can choose to log out all users instantly using the Log Out All Users feature.

Wachtwoord opnieuw instellen afdwingen

By enforcing a password reset, you can ensure that all users are prompted to change their passwords during their next login. This not only strengthens the security of their accounts but also immediately logs out all currently logged-in users.


  • WordPress 4,7
  • PHP 7,0
  • Werkend .htaccess bestand

Data Collection

Collection of technical data is optional and is listed here. This data is collected only for technical analysis, improvements and the possibility to contact the plugin user in case urgent issues need to be fixed (for example a critical security release that needs to be communicated to site owners). The plugin user can manage their preferences within the WP admin to control the collection of technical data. We advise opting in for this data collection, as it can enhance the plugin’s performance. You may find more information on data collection in our Plugins Privacy Notice.



Automatische installatie

  1. Ga naar Plugins -> Nieuwe toevoegen
  2. Search for “Security Optimizer by SiteGround”
  3. Click on the Install button under the Security Optimizer by SiteGround plugin
  4. Zodra de plugin is geïnstalleerd, klik je op de link plugin activeren

Handmatige installatie

  1. Login op je WordPress beheer paneel en ga naar plugins -> Nieuwe toevoegen
  2. Selecteer het ‘Uploaden’ menu
  3. Klik op de knop ‘Bestand kiezen’ en wijs je browser naar het bestand dat je hebt gedownload
  4. Klik op de knop ‘Nu installeren’
  5. Go to Plugins -> Installed Plugins and click the ‘Activate’ link under the WordPress Security Optimizer by SiteGround listing


29 februari 2024
It works fine for me, without problem. Easy to set up, well featured, stable. Very good job
20 februari 2024
When it works, it's great but every time this plug-in auto updates, I am locked out of my site as it seems to break the 2FA, so I have to manually go into the db and remove the 2FA for my user on every update which is a pain.
Lees alle 135 beoordelingen

Bijdragers & ontwikkelaars

“Security Optimizer – The All-In-One WordPress Protection Plugin” is open source software. De volgende personen hebben bijgedragen aan deze plugin.


“Security Optimizer – The All-In-One WordPress Protection Plugin” is vertaald in 10 talen. Dank voor de vertalers voor hun bijdragen.

Vertaal “Security Optimizer – The All-In-One WordPress Protection Plugin” naar jouw taal.

Interesse in ontwikkeling?

Bekijk de code, haal de SVN repository op, of abonneer je op het ontwikkellog via RSS.


Version 1.4.13

Release Date: Mar 27th, 2024

  • Plugin optimization.

Version 1.4.12

Release Date: Feb 20th, 2024

  • Bugfixes related to cookies and 2FA

Version 1.4.11

Release Date: Feb 14th, 2024

  • Security improvements related to cookies
  • Performance improvements

Version 1.4.10

Release Date: Jan 11th, 2024

  • Static assets are now part of the plugin package and load locally.
  • New users will be prompted to give their consent for the collection of technical data upon their initial use of the plugin.

Version 1.4.9

Release Date: Dec 12th, 2023

  • Improved detection of bots in activity log
  • Improved feature “Reinstall All Free Plugins” – deactivated plugins no longer get activated after the reinstall.

Version 1.4.8

Release Date: Nov 22nd, 2023

  • Dashboard visuals improvements
  • Readme file improvements
  • Weekly Security Report improved translations

Version 1.4.7

Release Date: Oct 24th, 2023

  • Data collection opt out option
  • Readme file formatting improvements
  • Plugin name formatting improvements
  • Weekly Activity Report Sending Schedule Randomisation

Version 1.4.6

Release Date: Sept 26th, 2023

  • Changing the name we use inside the plugin from SiteGround Security to Security Optimizer
  • Updating data collection process and Introducing a link in the plugin interface to the Plugin Privacy notice

Version 1.4.5

Release Date: May 4th, 2023

  • Improved log cleanup

Version 1.4.4

Release Date: May 3rd, 2023

  • Improved Visitors DB table indexing
  • Block service restored

Version 1.4.3

Release datum: 27 april 2023

  • Block service temporally disabled

Version 1.4.2

Release datum: 27 april 2023

  • Verbeterd activiteiten log proces en filters
  • Verbeterde code voor beperkte login reactie
  • Verbeterde PHP 8.2 comptabiliteit.
  • Alternatieve constante toegevoegd voor het gebruik van niet-standaard cron taak

Version 1.4.1

Releasedatum: 23 feb 2023

  • Interne configuratie verbeteringen

Version 1.4.0

Releasedatum: 1 feb 2023

  • Interne configuratie wijzigingen

Version 1.3.9

Releasedatum: 25 januari 2023

  • Verbeterde Foogra thema ondersteuning

Version 1.3.8

Releasedatum: 6 dec 2022

  • Verbeterde reactie
  • Verbeterde controles op de pagina instellingen
  • Verbeterde uitschakelen thema’s & plugins editor

Version 1.3.7

Releasedatum: 15 nov 2022

  • SG Security Dashboard bug fix
  • Verbeterde 2FA codering sleutel validatie
  • Verbeterde validatie van aangepaste login-/register URL’s
  • Verbeterde LiteSpeed Cache ondersteuning
  • Optie om aangepaste 2FA codering sleutel bestand pad te gebruiken

Version 1.3.6

Releasedatum: 8 nov 2022

  • Verbeterde 2FA beveiliging met encryptie
  • Verbeterde filters voor toegang logs
  • Nieuwe WP CLI opdracht: reset alle gebruikers 2FA instelling

Version 1.3.5

Releasedatum: 18 okt 2022

  • Verbeterde aangepaste login URL
  • Verbeterd activiteiten log

Version 1.3.4

Releasedatum: 10 okt 2022

  • Service correctie installeren

Version 1.3.3

Releasedatum: 10 okt 2022

  • Nieuwe optie activiteiten log beheren
  • Nieuw filter – Activiteiten log uitschakelen
  • Verbeterde aangepaste login URL
  • Verbeterde WP CLI ondersteuning
  • Verbeterde Jetpack plugin ondersteuning
  • Verbeterde fout afhandeling
  • Kleine bugfixes
  • Verouderde code verwijderd

Version 1.3.2

Releasedatum: 21 september 2022

  • 2FA Back-up codes beveiliging versterken

Version 1.3.1

Releasedatum: 13 september 2022

  • 2FA Authenticatie beveiliging versterken
  • IP adres detectie beveiliging versterken

Version 1.3.0

Releasedatum: 14 juli 2022

  • Gloednieuw ontwerp
  • Verbeterde compatibiliteit met 2FA authenticatie met Elementor aangepaste login pagina’s
  • Verbeterde gegevens verzameling
  • Kleine oplossingen

Version 1.2.9

Releasedatum: 20 juni 2022

  • NIEUW Filters voor “Systeem mappen vergrendelen en beveiligen” uitsluiten
  • Verbeterde ondersteuning voor IP bereiken
  • Verbeterde lijst met geblokkeerde IP adressen
  • Verbeterde verwijder de standaard readme.html
  • Verbeterde validatie van 2FA Authentication
  • Verbeterde ondersteuning voor 2FA Authentication voor login op “Mijn account”
  • Verbeterde gegevens verzameling
  • Kleine oplossingen

Version 1.2.8

Releasedatum: 18 mei 2022

  • Verbeterde beveiliging van plugins

Version 1.2.7

Releasedatum: 8 april 2022

  • Kleine bugfixes

Version 1.2.6

Releasedatum: 7 april 2022

  • 2FA Refactoring

Version 1.2.5

Releasedatum: 6 april 2022

  • 2FA Authentication refactoring
  • Verbeterde wekelijkse e-mails
  • HTST service verouderd

Version 1.2.4

Releasedatum: 16 maart 2022

  • Verbeterde wekelijkse e-mails
  • Verbeterde WooCommerce betalingen plugin ondersteuning
  • 2FA Authenticatie beveiliging versterken

Version 1.2.3

Releasedatum: 11 maart 2022

  • 2FA Authenticatie beveiliging versterken

Version 1.2.2

Releasedatum: 11 maart 2022

  • 2FA Authenticatie beveiliging versterken

Version 1.2.1

Releasedatum: 9 maart 2022

  • Verbeterde wekelijkse rapporten
  • Verbeterde HTTP headers service
  • Code refactoring

Version 1.2.0

Releasedatum: 28 februari 2022

  • NIEUW – Wekelijkse rapporten
  • Code refactoring en algemene verbeteringen
  • Verbeterde ondersteuning voor 2FA gebruiker rollen
  • Verbeterde fout afhandeling
  • Verbeterde ondersteuning voor LIMIT LOGIN IP bereik
  • Verbeterd evenement log
  • Verbeterde Phlox thema ondersteuning
  • Kleine oplossingen
  • Verbeterde WP CLI ondersteuning
  • Toestemming voor het verzamelen van omgeving gegevens toegevoegd

Version 1.1.3

Releasedatum: 1 oktober 2021
* Verbeterde Hide WP versie functionaliteit

Version 1.1.2

Releasedatum: 20 augustus 2021
* Verbeterde aangepaste login URL functionaliteit
* Verbeterde 2FA
* Verbeterde succes/fout berichten

Version 1.1.1

Releasedatum: 12 augustus 2021
* Verbeterde 2FA
* Verbeterde uitlog functionaliteit

Version 1.1.0

Releasedatum: 27 juli 2021
*NIEUW! 2FA back-up codes toegevoegd aan de profiel bewerking pagina
*NIEUW! Aangepaste aanmeldings- en registratie URL’s
*NIEUW! Automatische generatie HSTS headers toegevoegd
* Verbeterde functie algemene gebruikersnamen uitschakelen
* Verbeterde massa afmelding service
* Verbeterde activiteit logging en aangepaste labeling toegevoegd
* Verbeterde functionaliteit voor het opnieuw instellen van wachtwoorden

Version 1.0.4

  • Verbeterde beperking login pogingen

Version 1.0.3

  • Waardering box bug opgelost in Safari
  • Verbeterde RSS & ATOM Feed Disabler service

Version 1.0.2

  • Filter toegevoegd om de levensduur van het log te configureren
  • WP CLI ondersteuning toegevoegd
  • Verbeterde strings

Version 1.0.1

  • Standaard waarden toegevoegd bij installatie
  • Verbeterde ondersteuning voor vertalingen
  • Opschoning toegevoegd bij het verwijderen

Version 1.0.0

  • Eerste stabiele release.

Version 0.1

  • Eerst uitgave.