Core files should never be a mystery
Hackers love modifying core. Comparing against WordPress.org originals is one of the fastest ways to see if something changed that should not have.
- ✓ Checksum comparison against official files
- ✓ Spot unknown or modified core files
- ✓ View or restore guidance when issues appear
Pair with malware scanning on Pro
Core checks are essential. Pro malware scanning extends detection into plugins, themes, and other site files, plus cleanup tools.
- ✓ Malware signatures and suspicious patterns
- ✓ Plugin integrity checks
- ✓ Scheduled rescans
Customer reviews
4.9 / 5 from 258 reviews
No WordPress plugin should be your entire security stack, but this one is a solid choice to be a key part of it.
“I've been a web host and sysadmin for 15 years. I'm skeptical when it comes to security tools, and many of them out there are either bogged down bloatware, don't do enough, or try…”
Fast security audit with one-click fixes, but use judgment
“I installed WP Security Ninja on my own WordPress website, ran a scan, and fixed several real issues in under an hour.”
Great offering
“My Wordpress site had recently been compromised even when I had a scanning plugin that was supposed to detect malware.”
“Security Ninja has improved massively over the last year. The plugin keeps getting better and more powerful, and it has become an important part of how I manage WordPress security…”
Frequently asked questions
Is the Core Scanner free?+
Yes. It is included in the free Security Ninja plugin.
What if a file does not match?+
Treat mismatches seriously. Review the file, restore from official sources when appropriate, and investigate how it changed.
Verify core free. Clean deeper with Pro.
Use Core Scanner on Free, then add malware scanning and Cloud Firewall with Pro.
See pricing