The numbers don’t lie, and right now they’re alarming. Overall, 11,334 new vulnerabilities were found in the WordPress ecosystem in 2025 — a 42% increase compared to 2024. More troubling: the median time from vulnerability disclosure to mass exploitation is just 5 hours. That means the old strategy of scheduling updates “sometime this week” is no longer good enough.
WordPress powers 43% of the internet in 2025, making it both the world’s most popular CMS and its biggest target. Whether you’re running a small business site, a WooCommerce store, or a content-heavy blog, your site is a target — not because of who you are, but simply because you’re visible. The good news? Most successful attacks are preventable. Here are five security measures every WordPress site owner should have in place.
1. Keep WordPress Core, Plugins, and Themes Updated — Immediately
Keeping WordPress core, plugins, and themes updated is the single highest-impact habit you can build. This isn’t just routine maintenance — it’s your primary line of defence against known exploits.
Over 9 out of 10 successful attacks on WordPress sites in 2025 came from plugin and theme vulnerabilities — not from CMS core flaws. Plugins are the weakest link in the ecosystem and the primary attack vector. And the window to act after a patch is released is razor-thin: if you are relying on a workflow where you read about a vulnerability, evaluate its relevance, and then schedule an update for the next available maintenance window, that window is gone. The most actively targeted vulnerabilities are being hit while site owners are still deciding whether the update is urgent.
Actionable steps:
- Enable automatic updates for WordPress core minor releases.
- For plugins you trust — especially anything related to security, backups, or uptime monitoring — turn on auto-updates. If you see a changelog that mentions a security fix, don’t put it off. Update immediately.
- If a plugin hasn’t been updated in over a year, it probably doesn’t belong on your site.
- Remove inactive plugins entirely. Every unused plugin is a potential vulnerability.
If managing updates manually across multiple installs feels unmanageable, managed WordPress hosting handles core and plugin updates automatically, so your site stays current without the manual overhead.
2. Enforce Strong Passwords and Enable Two-Factor Authentication
Automated password guessing attempts on the WordPress admin panel are relentless. In 2025, brute force attacks increased by 45%, driven by AI-powered botnets. These bots can bypass traditional CAPTCHA and mimic human login patterns.
Strong passwords serve as the primary barrier for protecting your site from unauthorised access. Weak credentials invite hackers; strong authentication keeps your WordPress site secure and trustworthy.
Actionable steps:
- Always create passwords with a mix of uppercase and lowercase letters, numbers, and special characters. Aim for at least 12–16 characters.
- Every WordPress login, database, and hosting account should have its own unique password. Reusing one across multiple platforms increases vulnerability if any single one gets compromised.
- Use a password manager such as 1Password or Bitwarden to manage credentials securely.
- Enable multi-factor authentication (MFA). MFA adds layers to your security — a digital fortress that makes a would-be hacker’s life frustratingly hard.
- Rename or restrict access to the default
/wp-adminlogin URL to reduce automated targeting.
3. Limit Login Attempts and Harden Your Login Page
Your login page is one of the most targeted URLs on any WordPress site. Without any protection in place, automated bots can fire thousands of login attempts per hour.
Without limits, bots can hammer your login page with thousands of guesses until something sticks. Add a limit — say, three to five tries — and they’re locked out. It’s a simple change with an outsized impact.
Actionable steps:
- Install a security plugin (Wordfence, Solid Security, or Sucuri) that includes login attempt limiting out of the box.
- Limit login attempts, change the default login URL, and add CAPTCHA to reduce the volume of automated traffic hitting your login page.
- Whitelist your own IP address so you can’t accidentally lock yourself out.
- Disable the default
adminusername — hackers know all the most common passwords and will test every single one with the username “admin.”
It’s also worth noting that Wordfence, the most widely deployed WordPress security plugin, blocks 55 million exploit attempts and over 6.4 billion brute force attacks every single month across its network. That’s the scale of automated pressure your site is operating under — a proper security plugin is not optional.
4. Install a Security Plugin and a Web Application Firewall (WAF)
Modern security plugins provide multi-layered protection against the sophisticated threats WordPress faces in 2025. A good security plugin is the closest thing to a managed security operations centre that most small-to-medium site owners will ever have.
Leading options include:
- Wordfence — includes a WAF, malware scanner, real-time threat intelligence, and login security in one package.
- Sucuri Security — takes it up a notch with a fortress-like firewall and real-time monitoring, ready to repel anything from DDoS attacks to post-breach scenarios.
- Solid Security (formerly iThemes Security) — strong option for hardening WordPress defaults with minimal configuration.
A WAF is particularly valuable because it blocks SQL injections, XSS attacks, and zero-day exploits before they reach your site. However, keep in mind that comprehensive protection requires a multi-layered approach combining security plugins with server-side hardening, monitoring services, and professional maintenance.
Actionable steps:
- Choose one reputable security plugin and configure it fully — don’t install multiples that conflict.
- Enable the WAF component and run an initial malware scan after installation.
- Set up email alerts for failed logins, file changes, and new admin users.
- Make sure your hosting environment includes server-level protection. Our hosting plans include server-side firewall rules that complement what WordPress-layer plugins provide.
5. Run Regular Backups — and Test Them
No security strategy is complete without a recovery plan. Backups don’t prevent attacks, but they determine whether an attack destroys your business or becomes a manageable incident.
Backing up your data regularly is arguably the most important thing you can do to keep it safe. A full backup can be a lifesaver in the case of a security breach or malfunction. If your site gets hacked or ceases to function properly, the easiest way to solve the problem might be to restore a recent backup. The more recent the backup is, the less likely it becomes that you’ll lose any critical information.
Actionable steps:
- Save your backups in a secure cloud location — not on the same server as your site. If the server is compromised, an on-server backup is compromised too.
- Keep several versions of your site, not just the latest one, in case you need to revert further back.
- A backup is truly valuable only if it can be successfully restored when needed. Run restoration tests in a staging environment at least once a month to ensure files aren’t corrupted.
- For high-traffic or eCommerce sites, run daily backups. For content sites updated less frequently, weekly is the minimum.
Some web hosts offer automatic backups as part of your hosting plan, typically if it’s a managed service. Our managed WordPress hosting includes automated daily backups with easy one-click restoration, so you’re never starting from zero after an incident.
Bonus: Choose a Hosting Environment Built for Security
The five tips above assume your underlying hosting environment is solid. If it isn’t, even perfect WordPress configuration can’t fully compensate. Your hosting environment is the foundation of your WordPress security and performance. A reliable, security-first host helps prevent most vulnerabilities before they ever reach your website.
Look for a host that provides server-level firewalls, automatic malware scanning, PHP version management, SSL certificates, and — critically — staff who understand WordPress-specific threats. Standard hosting defenses block only 26% of exploits, which is why the configuration choices made at the server layer matter as much as the plugins you install.
The Bottom Line
Security is not a one-time implementation but an ongoing process that requires continuous attention and adaptation. The threat landscape continues to evolve, making regular security updates, monitoring, and improvement essential for maintaining effective protection.
The five steps above — keeping software updated, enforcing strong authentication, limiting login attempts, deploying a WAF and security plugin, and maintaining tested backups — address the overwhelming majority of real-world attack vectors. None of them require advanced technical knowledge. What they do require is consistency.
If you’d rather have a team handle this for you, we’re here to help. Our managed WordPress hosting includes security hardening, automatic updates, daily backups, and proactive monitoring as standard. Or if you’re looking to build a new site with security baked in from day one, explore our web development services. Either way, get in touch with us and we’ll help you find the right level of protection for your site.