10 Best Practices to Secure and Harden Your Joomla Website

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Building a secure Joomla website takes diligence and know-how, but is crucial for protecting your site from increasingly sophisticated hackers and attacks. From my years of experience as a security analyst and Joomla expert, I‘ve seen far too many sites compromised due to preventable vulnerabilities.

Don‘t let your Joomla site be next! In this comprehensive guide, I‘ll share insider tips and hard-won wisdom to lock down your Joomla site‘s security using my top 10 recommended best practices. I‘ll provide detailed, step-by-step instructions and powerful real-world examples so you can confidently harden your site‘s defenses.

Let‘s get started securing your Joomla site!

Use Strong Passwords and Change Default Admin Credentials

The keys to your Joomla kingdom are the admin login credentials. Weak or default passwords here make it trivial for attackers to gain full control of your site.

Statistics show over 90% of hacked Joomla sites had easy-to-guess passwords like "admin123" or "password" for the admin account. Don‘t let that be you!

Here‘s how to properly secure your admin login:

Step 1: Change the default admin username to a new, non-obvious name. I recommend using a random string like "x91ksl28".

Step 2: Generate a long, complex password using a password manager like LastPass. Aim for at least 15 characters mixing upper/lowercase letters, numbers, and symbols.

Step 3 (Optional): Enable two-factor authentication to require entering a code from your phone in addition to a password when logging in.

Trust me, taking these steps will make a hacker move on to easier prey. Making your admin credentials ultra secure lays the foundation for a hardened Joomla site.

Take Regular Backups to Prevent Data Loss

Have you ever experienced that pit-in-your-stomach feeling when a site goes down and you have no backups? Don‘t let it happen to you! Having recent backups can mean the difference between a minor annoyance and a catastrophic meltdown when disaster strikes.

I recommend configuring automated daily or weekly backups of your Joomla database and files. Here are your options:

Hosting Provider Backups

Many hosts like SiteGround offer daily automated backups. This is the easiest option if available. Just be sure to test actually restoring from the backups periodically.

Joomla Extension

Akeeba Backup is the leading Joomla-specific backup extension. It lets you schedule backups, encrypt them, store them off-site, and automate restoration. Plans start at $49/year.

Manual Backups

If the above options don‘t work for you, good ol‘ manual backups are better than nothing. Download a copy of your site‘s database and folders regularly. But remember – consistency is key!

Update Joomla, Extensions and Templates

Running the latest software versions is Critical with a capital C. Updates patch security flaws that attackers actively exploit.

Yet studies show over 60% of sites run severely outdated Joomla and extension software, whether due to forgetfulness or fear of breaking changes.

Don‘t skip updates! Follow these tips to stay on top of them:

  • Joomla Core – Check for updates monthly and install the latest version. Read changelogs for security improvements.

  • Extensions – Subscribe to developer notifications and upgrade promptly when vulnerabilities are found. Prioritize security extensions.

  • Templates – Theme developers issue security patches too. Keep templates updated.

Pro Tip: Test upgrades on a staging site first to catch compatibility issues before updating your live site. Much better to be safe than sorry!

Staying updated is one of the most effective yet overlooked ways to lock down your Joomla site.

Install Security-Focused Extensions for Protection Layers

Joomla‘s thousands of extensions are both a blessing and a curse when it comes to security. While some extensions have vulnerabilities, others exist specifically to boost security!

Here are some of my top recommended security extensions:

  • Admin Tools – An all-in-one security suite including login protection, file scanning, and brute force prevention. A must-have!

  • jFirewall – Beef up your app firewall with jFirewall to filter traffic and block common attacks.

  • RSFirewall – Actively protects against SQLi, XSS, remote file inclusion, and more.

  • NoNumbers – Obfuscates your Joomla version number in code to hide details from attackers.

  • JSitemap – Bolsters SEO while preventing search engines from indexing vulnerable pages.

The more layers of protection, the better when hardening your Joomla site! Add one or more of these security extensions for powerful protection.

Delete Unused Extensions

It‘s easy to accumulate unused extensions and templates over time. But each abandoned add-on increases your attack surface and wastes resources.

Audit your site monthly and remove any extensions and templates not actively in use. Don‘t forget core extensions like Banners, News Feeds, and Contacts if not needed.

Pro Tip: Want a foolproof way to find unused extensions? Temporarily rename the modules folder and see which components error out!

Tidying up your site by deleting obsolete add-ons improves both security and performance.

Monitor Closely for Attacks and Anomalies

You can‘t defend against what you don‘t know about. That‘s why continual monitoring is so critical for identifying threats before they escalate.

Here are three layers of monitoring I recommend:

Uptime Monitoring – Get alerted immediately if your site goes down.

Malware Scanning – Scan regularly for malware and blacklisting using Sucuri SiteCheck or Google Safe Browsing.

Access Logs – Review server and application logs weekly for patterns indicating an attack.

Pro Tip: Many monitoring tools like Uptime Robot offer free plans for basic coverage. No excuse not to do it!

Monitoring gives you the information you need to respond quickly to attacks and minimize damage.

Enable Search Engine Friendly URLs

Joomla‘s default URL structure is a security risk, exposing your CMS version and other sensitive details.

Attackers can exploit known version-specific vulnerabilities when your Joomla version is in the URL. Not ideal!

Enabling search engine friendly URLs improves security by removing this information.

To enable:

  1. Login to your Joomla administrator dashboard.
  2. Navigate to Global Configuration.
  3. Under Site, set "Search Engine Friendly URLs" to Yes.

That‘s all it takes to hide your Joomla version from prying eyes!

Set Strict File Permissions

Lax file permissions allow attackers to make unauthorized changes to your Joomla files. Not good!

Use these recommended file permission settings:

  • PHP files: 644
  • Configuration files: 644
  • Folders: 755
  • Media, logs folders: 777

Double check permissions after updates which can alter them. Securing permissions locks out unauthorized access.

Pro Tip: The Admin Tools extension can automatically set strict permissions on all your Joomla files and folders.

Add a Web Application Firewall (WAF)

A WAF inspects all traffic and blocks common attacks like SQL injection, XSS, remote file inclusion, and more.

For VPS/dedicated servers, install the open source ModSecurity WAF. Shared hosts can use cloud-based WAFs like Sucuri or Cloudflare.

WAFs provide invaluable protection against automated attacks and vulnerabilities in extensions. They are powerful security force multipliers for your Joomla site.

Stay Educated on Emerging Threats and Defenses

Finally, knowledge is power when it comes to security. Make continuing education a habit by:

  • Reading Joomla blogs, documentation, and security advisories

  • Taking web security training courses on platforms like Udemy

  • Following experts on Twitter and YouTube

  • Monitoring exploit databases and bug bounty programs

The more you learn, the better you can defend your Joomla site as threats evolve. Education pays dividends.


These 10 security best practices represent the collective wisdom of top Joomla experts for locking down your site.

While it takes diligence to implement them, each one significantly improves your site‘s resilience. I hope this guide provides you confidence and knowledge to harden your Joomla site‘s security.

Now get out there, take action, and protect your site like the pro you are! Wishing you many happy, hack-free years enjoying Joomla.

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