WordPress Security Tips: The 15-Point Action Checklist (2026)

Most WordPress sites get hacked due to a few common issues. These include a default admin username, outdated plugins, and untested backups. The fixes are simple. The problem is that the solutions are scattered across many guides, buried in long paragraphs that most site owners don’t finish reading.

This post focuses on the essentials. Here are fifteen WordPress security tips, listed in the order you should implement them. Each tip includes a single clear action. Work through the list from top to bottom. By the time you reach Tip 15, every main attack surface on a standard WordPress installation will be addressed.

If you want a clearer explanation of the strategy behind these recommendations, our WordPress security guide goes over hosting, authentication, plugins, server hardening, and long-term maintenance. Additionally, our breakdown covers the most common WordPress security mistakes. This checklist offers a balanced approach: it shows what to do, in what order, and when to start.

How to Use This Checklist

Work through all 15 tips in order. The Pro Tip box above explains why the sequence matters.

Some items are one-time actions you complete once and do not revisit. Most are recurring tasks that belong on a maintenance calendar. Where a tip is recurring, the frequency is noted in the detail sections below the main table.

If you run a WooCommerce store, these WordPress security tips are the baseline. Stores that process payments have additional requirements beyond what is covered here. The WooCommerce maintenance security guide covers the WooCommerce-specific layer, and the PCI DSS compliance guide covers the payment security obligations that apply to WooCommerce stores specifically.

The 15 WordPress Security Tips: Quick Reference

Use the table as your at-a-glance reference. The sections below explain each group with specific action steps.

WordPress Security Tips 1–4: Login Hardening

Login attacks are the most common attack vector on WordPress sites. Automated bots scan the internet continuously, probing wp-login.php with common username and password combinations. Tips 1 through 4 close this attack surface.

Tip 1: Replace the default admin username

The username “admin” is the first guess in any automated credential attack. If your WordPress installation uses it, create a new administrator account with a unique username, transfer any content attributed to the old account, and delete the admin account entirely. This is a one-time action.

Tip 2: Use a strong, unique password

A password of 16 or more characters is resistant to brute force attacks at current computing speeds. NIST’s current digital identity guidelines now prioritize length over forced complexity, so a long passphrase is just as effective as a shorter password stuffed with symbols. Use a password manager to generate and store it. Never reuse a password across multiple WordPress installations or other accounts. Change admin passwords immediately when any team member with access leaves the organization.

Tip 3: Enable two-factor authentication

Two-factor authentication (2FA) means a stolen or guessed password alone is not sufficient for an attacker to gain access. Require 2FA on every admin and editor account. An authenticator app is more reliable than SMS-based 2FA and is not vulnerable to SIM-swapping attacks. Enable this on all privileged accounts before implementing anything else. WooCommerce stores should go further: under PCI DSS v4.0.1, multi-factor authentication is now required for anyone with access to the cardholder data environment, not just admins, so shop managers and staff who can view or process orders need it too.

Tip 4: Limit login attempts

Setting a maximum of 3 to 5 failed login attempts before an IP is temporarily locked out helps stop automated credential-stuffing attacks. Review the list of blocked IPs monthly. Persistent attempts from the same IP ranges may indicate a targeted attack and should be permanently blocked at the hosting level.

Updates: Tips 5 to 8

Outdated software is the second most common cause of WordPress compromises. Every unpatched vulnerability in an installed plugin, theme, or WordPress core version is a known attack surface. The challenge is not whether to update but how to update without breaking anything.

Tip 5: Keep WordPress core updated

WordPress minor updates (security patches) can be configured to apply automatically. Major version updates should always be tested on a staging copy of the site first, then applied to the live site after confirming nothing breaks. Never apply a major core update directly to a live site without staging.

Tip 6: Keep all plugins updated

Update plugins one at a time on staging, not all at once. Bulk updating makes debugging impossible if one update causes a conflict. Remove any plugin that has not been updated by its developer in 12 months or more. An unmaintained plugin is a vulnerability that will never be patched.

Tip 7: Keep your theme updated

Use a child theme for all customizations. If you modify a parent theme directly, your changes are overwritten every time the theme updates. With a child theme, you can update the parent safely. Test theme updates on staging before applying them to the live site.

Tip 8: Remove nulled themes and plugins

Nulled software is pirated commercial software distributed for free. It almost always contains injected malicious code. If you have ever installed a nulled theme or plugin, delete it immediately and consider doing a fresh WordPress installation in a clean environment. The risk of leaving a compromised codebase in place is too high to patch around.

When did you last audit the admin accounts on your WordPress site? Most WordPress site owners know they should be following these WordPress security tips as part of their routine. Most are not. WooNinjas handles WordPress security as a managed service, covering everything from initial hardening through to ongoing monitoring, scanning, and reporting. See the WooNinjas WordPress security services page for the full scope of coverage.

Hardening: Tips 9 to 12

These tips reduce the attack surface at the file system, server, and network levels. Several are one-time configuration changes that do not require ongoing attention once implemented.

Tip 9: Disable file editing from the dashboard

WordPress allows administrators to edit plugin and theme files directly from the dashboard. If an attacker gains admin access, this is an immediate code injection route. Add the following line to wp-config.php to disable it permanently, as recommended in WordPress’s own hardening documentation:

define(‘DISALLOW_FILE_EDIT’, true);

Tip 10: Set correct file permissions

The correct settings, per WordPress’s hardening guidelines, are: directories at 755, files at 644, and wp-config.php at 600. Never set anything to 777 permissions. World-writable permissions allow any process on the server to modify your files.

Tip 11: Install and configure SSL

SSL encrypts all data transmitted between your server and a visitor’s browser. Force HTTPS across all pages of the site, not just the login page. Check that no mixed-content warnings appear after enabling HTTPS. Pay particular attention to the login page, contact forms, and checkout (if running WooCommerce), as these pages handle user-submitted data.

Tip 12: Enable a web application firewall

A web application firewall (WAF) filters malicious traffic before it reaches WordPress. It blocks SQL injection attempts, cross-site scripting attacks, and automated vulnerability scanning bots. Configure the WAF at the hosting or DNS level where possible rather than as a WordPress plugin, so it intercepts traffic before WordPress processes it.

Monitoring and Recovery: Tips 13 to 15

The final three WordPress security tips cover what happens after hardening is in place. No security posture is perfect. Monitoring catches what slips through. Backups make recovery possible when everything else fails.

Tip 13: Run regular malware scans

Schedule weekly automated malware scans. Scans should cover the file system and the database. Malware on a WordPress site can run silently for weeks before it becomes visible, particularly card-skimming code on WooCommerce checkouts or redirect injections that only fire for certain visitor types. Any detection should trigger an immediate investigation and remediation process.

Tip 14: Back up daily with an off-site copy

Back up the full WordPress database and all files every day. Store at least one copy in a location entirely separate from your hosting server. A backup stored on the same server it is meant to protect does not help you if the server itself is compromised or fails. Test a full restore on a staging environment at least once per quarter to confirm the backups are valid and recoverable.

Tip 15: Audit admin users monthly

Review every account in the WordPress users list with admin, editor, or shop manager access once per month. Remove any account that no longer belongs to a current, active team member. Set every account to the minimum permission level the person’s role requires. An active admin account belonging to a developer who finished a project six months ago is a standing vulnerability.

Where to Start Today

If you are working through this list for the first time on an existing site, start here:

1. Tips 1-4 (login hardening). These are the fastest to implement and close the most common attack vector. You can complete all four in under 30 minutes.
2. Tip 14 (backups). Set up your backup routine before touching anything else on the server. If something goes wrong during hardening, you want a clean restore point.
3. Tips 9 and 10 (file editing and permissions). One-time configuration changes that take under 10 minutes.
4. Tips 5-8 (updates). Work through these on staging. This is the most time-consuming group but also the highest impact for sites that have fallen behind on updates.
5. Tips 11-13 (SSL, WAF, scanning). Configure these as ongoing systems rather than one-time tasks.
6. Tip 15 (user audit). Run the first audit now, then add a monthly calendar reminder.

All 15 tips are achievable on a standard WordPress installation without specialist technical knowledge. The code snippet in Tip 9 is the only line of code in the entire list.

PRO TIP: Work through this list of WordPress security tips in the order they appear. The items are sequenced so that each one builds on the last. Login hardening (tips 1 to 4) comes first because it is the fastest to implement and closes the most common attack vector. Updates (5 to 8) come next because outdated software is the second most common breach point. File and server hardening (9 to 12) follow. Monitoring and recovery (13 to 15), close it out. If you do them in order and complete all 15, you will have covered every major attack surface on a standard WordPress site.

Conclusion

These 15 WordPress security tips cover the core attack surfaces on a standard WordPress site. None of them requires specialist expertise to implement. Most take under 30 minutes to complete. The monthly and weekly recurring tasks take under an hour per month combined once the initial setup is done.

If you would prefer to have a professional team handle these WordPress security tips on your behalf, the WooNinjas WordPress security service is available for initial hardening, ongoing monitoring, and malware remediation. For sites that also need a broader maintenance program, the general WordPress maintenance plans include security as a core component.

Get your WordPress site secured by people who have done this on 700+ WordPress sites.WooNinjas provides WordPress security services covering site audits, malware cleanup, login hardening, and WAF setup. Whether you need a one-time security audit or an ongoing managed setup, the team handles the full setup so you do not have to work through this checklist yourself. For WooCommerce stores that need security built into an ongoing maintenance plan, the WooNinjas WooCommerce maintenance plans include all 15 items on this checklist as part of the service. Reach out via the WooNinjas contact page to discuss your site’s requirements.

Frequently Asked Questions

Which WordPress security tips should I implement first?

Start with login hardening. Replace the default admin username, set a strong password, enable two-factor authentication, and limit login attempts. These four WordPress security steps close the most common attack vector and take under 30 minutes. Set up daily backups second so you have a clean restore point before making any other server changes.

How often should I run through this WordPress security tips checklist?

Some items are one-time actions: replacing the admin username, disabling file editing, and setting file permissions. The rest are recurring. Run update checks and malware scans weekly, back up daily, and audit admin users monthly. Add each task to a shared calendar with a named owner so nothing gets missed.

Do these WordPress security tips apply to WooCommerce stores?

Yes, but they are the baseline, not the full picture. WooCommerce stores that process payments need additional WordPress security measures under PCI DSS v4.0.1. That includes multi-factor authentication for everyone with access to the cardholder data environment, more frequent backups, payment gateway checks after every update, and checkout-specific malware scanning.

What is the difference between this checklist and the WordPress Security Guide 2026?

This checklist tells you what to do. The WordPress Security Guide 2026 explains why each security layer matters. Use this checklist to implement quickly. Use the guide to understand hosting selection, authentication architecture, plugin management, and long-term WordPress security planning in depth.

Can I handle WordPress security myself, or do I need a professional?

Every item on this checklist works without specialist knowledge. The only code involved is one line in wp-config.php. That said, weekly scans, monthly audits, staged updates, and malware response take consistent time. Many site owners handle the initial WordPress security setup themselves and outsource the ongoing maintenance once their business grows.