The Guide to WordPress Security for UK Site Owners
From backups and strong passwords to firewalls and SSL, this is the ultimate guide for British WordPress owners on how to keep their website safe and secure.
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Imagine you’ve just opened a brilliant new shop on the high street. You’ve spent ages picking the right location, designing the window display, and stocking the shelves with fantastic products. It looks the business. But on your first night, you head home and leave the front door wide open, with the keys still in the lock.
Sounds daft, doesn’t it? Yet, that’s exactly what many people do with their WordPress websites.
WordPress is brilliant. It powers over 40% of the entire internet, from one-person blogs and local plumbers’ websites to massive news outlets like The Sun and The Spectator. It’s flexible, powerful, and relatively easy to use. But because it’s so popular, it’s also a massive target for hackers, bots, and all sorts of digital ne’er-do-wells.
Many small business owners or bloggers think, “Why would anyone target my little website?” It’s a common mistake. Most attacks aren’t carried out by a shadowy figure in a hoodie hunched over a laptop, specifically targeting you. They’re done by automated bots that scour the internet, rattling thousands of digital door handles every minute, looking for an easy way in.
They don’t care if you’re a multinational corporation or a dog groomer from Doncaster. An insecure website is an opportunity. They can use it to steal customer data, send out spam emails, host dodgy files, or simply vandalise it, wrecking your reputation in the process.
This is where E-E-A-T comes in. It stands for Experience, Expertise, Authoritativeness, and Trustworthiness. It’s a set of standards that search engines like Google use to figure out which websites are high-quality. A hacked website is the opposite of trustworthy. It tells visitors (and Google) that you don’t take your digital presence seriously.
But don’t panic. Securing your WordPress website isn’t nearly as complicated or scary as it sounds. You don’t need to be a tech genius. Most of it is just good housekeeping. It’s about locking the doors, fitting a decent alarm, and knowing who to call if you get into trouble.
This guide will walk you through everything, step by step, in plain English. We’ll start with the simple, must-do basics before moving on to some more advanced (but still very manageable) tools and techniques. Think of it as your complete security checklist to turn your website from an open house into a digital Fort Knox.
The Low-Hanging Fruit: Your First Line of Defence
Before we dive into fancy plugins and firewalls, let’s get the absolute basics sorted. These are the non-negotiable, must-do tasks that will block the vast majority of automated attacks. Getting these right is like making sure your front and back doors are locked. It’s simple, but incredibly effective.
Keep Everything Updated: The Digital MOT Test
Imagine driving a car that has never had an MOT. Sooner or later, something important is going to fail. It’s the same with software. Every piece of software, including WordPress itself and its themes and plugins, is a bit like a car. The people who build them are constantly finding and fixing small faults, weaknesses, and potential security holes. These fixes are released as updates.
Why updates are so crucial: When a security hole is discovered in WordPress, a theme, or a plugin, the details are often made public. This is good because it helps everyone understand the risk. But it’s also bad because hackers see it as a public announcement: “Here’s a brand-new way to break into websites that haven’t updated yet!” They then create bots that do nothing but search for sites with that specific, unpatched weakness.
Ignoring updates is like leaving a window open with a big sign next to it saying, “Come on in!”
What you need to update:
- WordPress Core: This is the main engine of your website. WordPress often releases updates to patch security issues, add new features, and improve performance. Minor security updates are usually applied automatically, but you should always keep an eye out for major releases.
- Plugins: These are the extra bits of software you add to give your site new features. They are the most common way hackers get into a WordPress site. A popular plugin can be active on millions of websites, making it a very juicy target.
- Themes: This is what controls the look and feel of your site. Just like plugins, themes can also have security holes that need patching.
How to update safely: Inside your WordPress dashboard, you’ll see a notification in the top bar or under the ‘Dashboard’ > ‘Updates’ section when something needs updating. It’s tempting to just click ‘Update All’, but hold your horses.
Always, always, always back up your website before you update anything.
Sometimes, an update for one plugin might clash with another, or with your theme, causing a bit of a digital kerfuffle that could break your site. It’s rare, but it happens. A backup is your ‘undo’ button. If anything goes wrong, you can simply restore the backup and your site will be back to normal in minutes. We’ll cover backups in more detail next.
Strong Passwords: More Than Just ‘Password123!’
Your password is the key to the front door of your website. And if your password is ‘Password123’, ‘123456’, or the name of your pet, you might as well just leave the key under the doormat.
One of the most common types of attack is a brute force attack. This is where a bot tries to log in to your site by guessing thousands of different password combinations every second. If your password is weak, it won’t take long for them to guess it.
What makes a password strong?
- Length: It should be long, at least 12 characters, but 16 or more is even better.
- Complexity: It should be a random mix of uppercase letters, lowercase letters, numbers, and symbols (like
!,£,%,&). - Uniqueness: It must be a password you’ve never used for any other account (like your email, online banking, or Facebook). If another service gets hacked and your password leaks, hackers will try that same password on your website.
A great password looks something like this: J&g5!k£pZ@7sR#b9.
That looks impossible to remember, right? It is. And that’s the point. You shouldn’t be remembering your passwords. You should be using a password manager.
Password Managers: Your Digital Keyring A password manager is a secure app (like Bitwarden, 1Password, or LastPass) that creates, saves, and fills in these super-strong, unique passwords for all your online accounts. You only have to remember one single, strong master password to unlock the manager itself. It’s the single best thing you can do to improve your personal online security across the board.
WordPress-Specific Password Tips:
- Never use ‘admin’ as a username. This is the first username that every hacker’s bot tries to guess. If you already have a user called ‘admin’, create a new administrator account with a unique username, log in with that new account, and then delete the old ‘admin’ one.
- Enforce strong passwords for all users. If you have other people who can log in to your site (like editors or shop managers), make sure they use strong passwords too. WordPress has a built-in strength meter, so encourage them to use it.
Backups: Your Website’s Time Machine
Right, let’s be blunt. If you do only one thing from this entire guide, make it this one.
Backups are your ultimate safety net. A backup is a complete copy of your entire website (all the files, posts, pages, and the database) that’s stored somewhere safe.
If the worst happens—if your site gets hacked, if an update goes wrong, if you accidentally delete something important—a recent backup lets you turn back time. You can simply restore the clean, working copy of your site and pretend the whole sorry mess never happened. Without a backup, you could lose everything. It’s the difference between a minor headache and a complete catastrophe.
What you need to back up: Your WordPress site is made of two main parts, and you need to back up both:
- Your Files: This includes the WordPress core files, your plugins, your themes, and any images or documents you’ve uploaded.
- Your Database: This is where all your content is stored. Every post, every page, every comment, and all your site settings live in the database.
How to back up your site: You’ve got two main options here, and it’s a good idea to use both for a ‘belt and braces’ approach.
- Hosting Provider Backups: Most good web hosting companies create regular backups of your site for you. This is fantastic, but you shouldn’t rely on it as your only option. Check with your host to find out how often they take backups and how you can restore one if you need to.
- WordPress Backup Plugins: A plugin gives you more control. You can decide exactly what gets backed up, where it’s stored, and how often it happens. The best plugins can save your backups to an off-site location like Dropbox, Google Drive, or Amazon S3. This is really important—if your whole hosting account gets compromised, you don’t want your backups stored in the same place.
A brilliant and widely trusted plugin for this is UpdraftPlus. The free version is powerful enough for most people. You can set it up to run automatic backups on a schedule (e.g., daily or weekly) and send the files straight to your cloud storage.
How often should you back up? It depends on how often your site changes.
- For a busy online shop or news site: You should be backing up at least once a day.
- For a blog where you post a few times a week: A weekly backup is probably fine.
- For a simple brochure site that rarely changes: A monthly backup might be enough, but it’s still wise to do one before any major updates.
Choosing Your Allies Wisely: Hosting, Themes, and Plugins
Your website’s security isn’t just about what you do after it’s built; it starts with the building blocks you choose. Picking a solid hosting provider and being careful about the themes and plugins you install can prevent a lot of problems from ever starting.
Secure WordPress Hosting: The Foundation of Your Fortress
Your web host is the company that provides the physical computer (the server) where your website’s files live. Think of it as the plot of land you build your house on. If that land is on a shaky, insecure flood plain, it doesn’t matter how strong your house is.
What makes a hosting provider secure?
- Server-Level Firewall: A good host will have a powerful firewall protecting all the websites on their servers, acting as a first line of defence.
- Malware Scanning: They should regularly scan their servers for malicious software.
- The Latest Software: They should be running up-to-date versions of all the server software, like PHP (the programming language WordPress runs on) and MySQL (the database software). Running old, unsupported versions is a huge security risk.
- Free SSL Certificates: As we’ll see later, having an SSL certificate is essential. Good hosts provide them for free and make them easy to install.
- Good Support: If something does go wrong, you want to be able to speak to someone who knows what they’re doing and can help you quickly.
When you’re starting out, it’s tempting to go for the cheapest hosting you can find. But this is often a false economy. Rock-bottom prices can mean overcrowded servers and poor security. It’s worth paying a few extra quid a month for a reputable provider.
For UK users, look for hosts that have servers located in the UK or Europe. This can give your site a slight speed boost for local visitors and can be helpful for data protection compliance (like GDPR).
A word on Managed WordPress Hosting: This is a type of premium hosting where the company takes care of a lot of the technical stuff for you. They’ll often handle backups, updates, and security scanning automatically. It costs a bit more, but if you’re not very technical or you just want peace of mind, it can be a fantastic investment.
Themes and Plugins: Don’t Invite Trouble In
Themes and plugins are what make WordPress so powerful, but they are also the main way that hackers find their way into your site. A single badly coded or out-of-date plugin can be the chink in your armour.
The danger of ‘nulled’ themes and plugins: A ‘nulled’ or pirated theme is a paid-for premium theme that someone is offering for free. It sounds like a great deal, but it’s an incredibly bad idea. These files are almost always packed with hidden malware. The people who distribute them add their own nasty code that can give them full control over your website, steal your data, or inject dodgy links. Never, ever use them. It’s like being handed a ‘free’ key to a new house, only to find out it also unlocks the door for a gang of burglars.
How to choose safe themes and plugins:
- Stick to reputable sources. The official WordPress.org theme and plugin directories are the safest place to start. Everything listed there has been checked against a set of standards. For premium (paid-for) items, use well-known marketplaces like ThemeForest or buy directly from respected developers.
- Check the reviews and ratings. See what other people are saying.
- Look at the last updated date. If a plugin hasn’t been updated in over a year, it might have been abandoned by its developer. This is a red flag, as any security holes found in it will never be fixed.
- Check for active support. See if the developer is actively answering questions in the support forums. This shows they are engaged and maintaining their product.
The ‘less is more’ principle: It’s easy to get carried away and install dozens of plugins. But every plugin you add is another potential door into your website. It’s another piece of software you need to keep updated.
Be ruthless. Go through your plugin list every few months. If you’re not using a plugin, deactivate it and delete it. Just deactivating it isn’t enough; the files are still on your server and could potentially be exploited.
Locking the Doors and Windows: Hardening Your WordPress Site
Okay, we’ve covered the fundamentals. You’ve got strong passwords, you’re doing regular updates and backups, and you’ve chosen your tools wisely. Now it’s time to add a few more layers of protection. This is often called ‘hardening’, and it’s about making it much more difficult for attackers to get a foothold.
The Bouncer at the Door: Limit Login Attempts
Remember those brute force attacks we talked about, where bots try to guess your password thousands of times? By default, WordPress will let them try as many times as they like. This is not ideal.
You can easily fix this with a security plugin. These plugins can be configured to temporarily block an IP address after, say, five failed login attempts. This stops the bots in their tracks. It’s like a bouncer at a club who tells a troublemaker they’ve had their chance and they’re not getting in tonight.
A great, simple plugin for this is Limit Login Attempts Reloaded. It does one job and does it well. Many of the bigger security plugins, which we’ll discuss later, also have this feature built-in.
Two-Factor Authentication (2FA): The Double Lock
Two-Factor Authentication, or 2FA, is one of the most powerful ways to secure any online account, including your WordPress site. It adds a second layer of security to the login process.
- Simplified Explanation: To log in, you need two different things:
- Something you know: Your password.
- Something you have: A temporary, one-time code generated by an app on your phone (like Google Authenticator or Authy).
Even if a hacker manages to steal your password, they still can’t log in because they don’t have your phone to get the second code. It’s like having two different locks on your door that need two different keys.
Setting this up might sound complicated, but it’s surprisingly easy with a plugin. The free version of the Wordfence Security plugin has a great 2FA feature that’s simple to configure. It’s a huge security upgrade for very little effort.
User Roles and Permissions: Don’t Give Everyone the Keys to the Kingdom
If you have multiple people working on your website, it’s vital to give them the right level of access. WordPress has a built-in system of user roles, each with different permissions.
- Administrator: Has full control over the entire website. They can install plugins, change themes, and delete anything. Only give this role to people you trust completely.
- Editor: Can publish and manage posts and pages, including those written by other people.
- Author: Can write, publish, and manage their own posts.
- Contributor: Can write posts but cannot publish them. An Editor or Administrator has to approve them first.
- Subscriber: Can only manage their own profile.
The golden rule here is the principle of least privilege. This means you should only ever give someone the minimum level of access they need to do their job. If someone just needs to write blog posts, make them an Author, not an Administrator. This limits the potential damage they could cause, either accidentally or if their account gets compromised.
The Technical Toolkit: Getting a Bit More Advanced (But We’ll Keep it Simple)
Don’t let the word ‘technical’ put you off. These next steps are hugely important, and thanks to modern hosting and plugins, they are much easier to implement than they used to be.
SSL Certificates (The Padlock): Why ‘https’ is a Must-Have
Have you ever noticed the little padlock icon in your browser’s address bar when you’re on a banking website or a major online store? That padlock means the site is using an SSL certificate. It also means the address starts with https:// instead of just http://.
- Simplified Explanation: An SSL certificate creates a secure, encrypted connection between your website and your visitor’s browser. It’s like sending a message in a secret code that only the sender and receiver can understand. Anyone trying to eavesdrop in the middle will just see a load of scrambled nonsense.
Why is this so important?
- Security: It protects any information that gets sent between the visitor and your site. This includes login details, contact form submissions, and, crucially, credit card details if you run an online shop.
- Trust: That little padlock is a huge visual sign of trust for your visitors. People are now taught to look for it, and many will be wary of a site that doesn’t have one.
- SEO (Search Engine Optimisation): Google has confirmed that having
httpsis a ranking signal. They want to send their users to secure websites, so having an SSL certificate can give you a small boost in search results. In fact, Google Chrome will now actively warn users if they are visiting a site that is not secure.
How do you get one? A few years ago, this was a complicated and expensive process. Not anymore. Most good web hosts now offer free SSL certificates through a service called Let’s Encrypt. You can usually activate it with a single click in your hosting control panel. If your host wants to charge you for a basic SSL certificate, you should seriously consider moving to a better host.
Web Application Firewall (WAF): Your Digital Bodyguard
A Web Application Firewall, or WAF, is a protective shield that sits between your website and the rest of the internet.
- Simplified Explanation: Before any traffic can reach your website, it has to pass through the WAF. The WAF analyses the traffic, looking for anything suspicious, like known hacking techniques, traffic from malicious bots, or attempts to exploit common vulnerabilities. If it spots something dodgy, it blocks it before it can even touch your website. It’s like a digital bodyguard or a high-tech security checkpoint.
There are two main types of WAF:
- DNS-Level / Cloud-Based WAF: This is where you route all your website traffic through a third-party company’s network. They filter it for you and only send the clean, legitimate visitors to your server. The most popular service for this is Cloudflare. They have a generous free plan that is perfect for most small websites. It’s incredibly powerful.
- Plugin-Based WAF: Some security plugins (like Wordfence and Sucuri) include a firewall that runs as part of your WordPress installation. These are also very effective, but they have a slight disadvantage: the malicious traffic has to reach your server before the plugin can block it. A cloud-based WAF stops it before it even gets that far.
For the best protection, a cloud-based WAF like Cloudflare is the way to go.
Hiding the Good Stuff: Securing Key Files
There are a few simple tweaks you can make to your WordPress installation to hide sensitive information and disable potentially dangerous features.
- Protect
wp-config.php: This is one of the most important files in your entire website. It contains your database connection details—the username and password for your database. You should protect it from being accessed by browsers. Your security plugin can often do this for you. - Disable File Editing: In the WordPress dashboard, there’s a built-in file editor (
Appearance>Theme File Editor). This allows you to edit your theme’s code directly from your browser. It’s convenient, but it’s also a huge security risk. If a hacker gets into your admin account, they can use this editor to inject malicious code into your site. It’s much safer to disable it completely. You can do this by adding a small snippet of code to yourwp-config.phpfile, or again, by using a security plugin. - Change the Database Prefix (for new sites): By default, WordPress names all the tables in its database with the prefix
wp_. Hackers know this, which makes it slightly easier for them to write scripts to attack the database. When you’re installing a new WordPress site, it’s a good idea to change this prefix to something random, likewp_a8c3f_. Many security plugins also offer a tool to change this on an existing site, but you must back up your database before you try it as it can break your site if it goes wrong.
Keeping Watch: Ongoing Monitoring and Maintenance
Security isn’t a ‘set it and forget it’ task. It’s an ongoing process of maintenance and vigilance. You’ve fitted the locks and alarms; now you need to make sure they’re working and keep an eye out for anything unusual.
Run Regular Security Scans
How do you know if a malicious file has somehow found its way onto your website? You need to scan for it.
Security plugins like Wordfence or Sucuri Security are brilliant for this. They can scan all the files in your WordPress installation and compare them to the official versions. They’ll alert you if any core files have been changed, or if they find any signatures of known malware.
You can schedule these scans to run automatically—once a week is a good starting point. The plugin will then email you a report if it finds anything suspicious. This gives you an early warning that something might be wrong, allowing you to fix it before it becomes a major problem.
Understanding Activity Logs
An activity log is a running record of everything that happens on your website. It tracks who logged in and when, what posts they edited, which plugins they installed, and so on.
This might sound like overkill, but it can be incredibly useful. If something on your site breaks, you can look at the log to see what changes were made just before it happened. And from a security perspective, if you suspect your site has been compromised, the activity log can help you trace the hacker’s footsteps and see exactly what they did.
Plugins like WP Activity Log can provide this functionality, and some of the larger security plugins also include it.
The Unthinkable: What to Do If Your WordPress Site Gets Hacked
Even if you follow all the best advice, there is still a small chance that your site could be compromised. If it happens, the most important thing is not to panic. Here’s a calm, step-by-step plan to get you back on track.
Step 1: Don’t Panic Take a deep breath. It’s stressful, but it’s fixable. Panicking can lead to rash decisions that make things worse.
Step 2: Contact Your Hosting Provider Your host should be your first port of call. They have experience with this sort of thing and can help you. They can confirm if it’s a genuine hack, scan your files for malware from their end, and might be able to help you identify how the attackers got in. They can also temporarily suspend your site to stop it from infecting visitors or sending out spam.
Step 3: Scan Your Site If you can still access your WordPress admin area, run a scan with your security plugin (like Wordfence or Sucuri). This should give you a list of any malicious or modified files. If you can’t get into your admin, your host may be able to help you scan it.
Step 4: Restore from a Clean Backup This is the fastest and easiest way to fix a hacked site. If you have regular, clean backups, you can simply restore a version of your site from before it was hacked. Job done. You’ll lose any content you’ve added since that backup was taken, but it’s a small price to pay for a clean, secure site.
Step 5: Clean Up and Secure Everything Once you’ve restored your backup (or if you don’t have one and need to clean the site manually), you need to lock everything down immediately to stop the hackers from getting straight back in.
- Change ALL your passwords: Your WordPress admin password, all other user passwords, your hosting control panel password, your FTP passwords, and your database password. Assume all of them have been stolen.
- Find and fix the vulnerability: This is the hard part. You need to figure out how they got in. It was most likely through an out-of-date or vulnerable plugin or theme. Your host or a security professional can help you investigate.
- Re-install WordPress, themes, and plugins: Download fresh copies from official sources and re-upload them.
Step 6: When to Call in the Professionals Cleaning a hacked website can be a complex and time-consuming job. If you’re not confident doing it yourself, or if you don’t have a clean backup, it’s often best to pay for a professional clean-up service. Companies like Sucuri offer this service. It might cost a couple of hundred pounds, but it will give you peace of mind that the job has been done properly.
Conclusion: Making Security a Habit, Not a Hassle
Protecting your WordPress website can seem like a daunting task, but as we’ve seen, it all comes down to a few core principles and building good habits.
It starts with the foundations: using strong and unique passwords, keeping everything updated, and—most importantly—having a reliable and regular backup strategy. These three things alone will protect you from the vast majority of attacks.
Then, you add the layers of defence: choosing a good host, using reputable themes and plugins, and hardening your site with a firewall, SSL, and two-factor authentication.
Finally, you make it a routine: running regular security scans and keeping an eye on things.
Don’t try to do everything at once. Work through this guide step by step. Start with the low-hanging fruit and gradually add more layers of protection. Use the fantastic plugins that are available to automate as much of the process as possible.
Your website is a valuable asset. It’s your digital shop window, your portfolio, your voice. Taking a little bit of time to protect it properly isn’t a chore; it’s one of the best investments you can make in your online presence. It builds trust with your visitors, keeps your data safe, and gives you the peace of mind to focus on what you do best: creating great content and running your business.
Further Reading
For those who want to dive even deeper, here are some of the most respected resources in the world of WordPress security:
- WordPress.org Official Hardening Guide: The official documentation from the people who make WordPress.
- Wordfence Blog: An excellent resource for the latest WordPress security news, threats, and best practices.
- Sucuri Blog: Another industry leader with in-depth guides and analysis of website security trends.
- The UK’s National Cyber Security Centre (NCSC): While not specific to WordPress, the NCSC offers fantastic, practical advice for small businesses on improving their overall cyber security.