Every “best WordPress security plugins” post reads the same way: a listicle written by someone who’s never installed half of what they’re ranking. This one’s different for one reason, we build a WordPress security plugin ourselves, tested against a real live site every step of the way, so we know exactly what these categories actually mean in practice, not just from a features page.
One honest disclosure up front: SecondGate is on this list, and we’re not pretending to be neutral about our own product. What we are committed to is getting every other plugin’s facts right, checked against current pricing and features, not copied from a five-year-old comparison post. Here’s what’s actually true right now.
Wordfence
The most widely used WordPress security plugin, and the free tier genuinely earns that reputation: a functional firewall, malware scanning, login rate limiting, and file change detection, all included, no card required. The catch is a 30-day delay on firewall rule updates and malware signatures compared to Premium.
Premium runs $149/year and removes that delay, adds a continuously updated IP blocklist covering 40,000+ known threat sources, country blocking, and an audit log. Wordfence Intelligence, their vulnerability database, is genuinely the most comprehensive public one in the WordPress space, over 33,000 CVEs as of mid-2026.
Where it gets expensive is if your site actually gets hacked. Wordfence Care ($590/year) adds ongoing monitoring and cleanup. Wordfence Response, a one-time emergency cleanup service, runs into four figures per incident. That’s the real cost of malware remediation across this entire industry, not unique to Wordfence, worth knowing before you need it.
Sucuri
Sucuri’s architecture is genuinely different from Wordfence: it’s a cloud-based firewall sitting in front of your site, not a plugin running inside it. That has a real advantage, malicious traffic gets blocked before it ever reaches your server.
The thing worth knowing before you install it: the free Sucuri plugin includes no firewall at all. It’s monitoring only, file integrity checks and alerts, nothing that actually blocks traffic. To get the firewall, you need a paid Platform plan, starting around $229/year, and setup requires changing your DNS nameservers or A records, a real technical step, not a plugin activation.
If your site’s already been compromised, Sucuri’s cleanup team is a genuine strength, unlimited manual malware removal is included in paid plans rather than charged per incident the way some competitors do it.
Kadence Security (formerly Solid Security, formerly iThemes Security)
This one’s had a confusing few years. Originally iThemes Security, renamed to Solid Security in 2023, then renamed again to Kadence Security in May 2026 after Liquid Web folded the SolidWP brand into their Kadence product line. If you’ve seen any of those three names, this is the same plugin.
It’s a hardening-first tool, not a firewall-and-scanner tool the way Wordfence and Sucuri are. The free tier covers real ground, local brute-force protection, file change detection, basic 2FA, and it’s genuinely one of the better free tiers available. What it doesn’t do, at any price tier, is run a true malware scanner. The Pro tier integrates Patchstack’s vulnerability database for virtual patching against known plugin CVEs, which is a real, useful capability, but if malware scanning specifically is what you’re looking for, this isn’t the tool for it. Pricing has moved around a lot through the rebrands, worth checking their current site directly rather than trusting an older number.
SecondGate
Where we fit into this: passkeys and standard 2FA, brute-force protection, and country blocking across 166 countries are free, permanently, not a trial. That specifically includes passkey support, free permanently, the same standard Wordfence itself only just adopted in its own free tier with version 9.0.0.
The thing we’d flag about our own product, honestly: we don’t run a malware scanner or a traditional firewall the way Wordfence and Sucuri do. What Pro adds is a tamper-evident audit log, DNS-verified crawler exemption (so blocking never risks accidentally catching Google), vulnerability scanning matched to your exact installed plugin versions, and composite threat scoring, at £19.99/year, a fraction of what the comparable paid tiers above cost. If you’ve been hacked and need cleanup, that’s not us, that’s Sucuri’s or Wordfence’s territory, and we’d tell you that plainly rather than pretend otherwise. Get free access, first 100 testers get Pro included.
How to actually choose
If your site’s already been compromised and you need professional cleanup, Sucuri’s Platform or Wordfence Care/Response are built for that specific job, nothing above replaces a human doing incident response.
If you want the strongest free login security and geo-blocking, including passkeys, without any of it disappearing behind a paywall, that’s the gap SecondGate is built to fill.
If hardening and vulnerability patching against known plugin CVEs is the priority, Kadence Security’s free tier is a genuinely solid choice.
None of these fully replace the others. Most serious WordPress setups end up running a login/hardening layer alongside a malware-scanning layer, not choosing exactly one.
FAQ
Do I need more than one security plugin?
Running two plugins with overlapping firewall features can cause conflicts, but a login-security plugin and a malware-scanning plugin generally coexist fine, since they’re solving different problems.
Is a free security plugin actually enough?
For most small sites, yes, for a genuine free tier from any of the plugins above. The real gap tends to show up specifically around malware cleanup, which no free tier includes anywhere in this space.
Why doesn’t SecondGate have a malware scanner?
Because we’d rather build a smaller number of things properly than a long feature list stretched thin. File integrity and vulnerability scanning (checking installed plugins against known CVEs) are in the Pro tier; full malware signature scanning isn’t something we currently offer.
Ready to see it for yourself? Get free access, first 100 testers get Pro included, no card required.
