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Really Simple Security vs WP Cerber Security

Updated 5 Oct 2026. 26 features compared side by side.

Really Simple Security

★★★★★★★★★★ 4.9 (8,869)

SSL migration and lightweight hardening plugin (formerly Really Simple SSL) with vulnerability alerts, plus a Pro firewall, 2FA and security headers.

Free installs3M+
From$69/yr
UpdatedOct 2026
VS

Self-distributed WordPress security plugin with firewall, anti-spam, malware scanner, 2FA and custom login URL; PRO adds GEO rules and scheduled scans.

Est. installs~6K
From$99/yr
ModelFreemium

Choose Really Simple Security if…

  • You want the lower entry price ($69/yr vs $99/yr)
  • You prefer the more widely used option

Choose WP Cerber Security if…

  • You need malware scanner and activity log
  • You also want real-time IP blocklist and file change detection
  • You want the more complete feature set (69/100 vs 54/100)

WP Cerber Security has 7 that Really Simple Security lacks, including Real-time IP blocklist, Malware scanner and File change detection. Both include 10 of the 26 features we track. 8 features are not yet verified for one or both plugins.

At a glance

Really Simple Security
WP Cerber Security
54/100
Feature score
69/100
16 of 26
Features included
17 of 26
4.9/5
WordPress.org rating
—
3M+
Active installs
n/a
100%
Support threads resolved
n/a

Feature comparison

Click a screenshot to see both plugins side by side.

Feature
Really Simple Security
WP Cerber Security
Firewall & blocking5/76/7
Web application firewall KeyFilters malicious requests (SQL injection, XSS and similar) before they reach WordPress.
Really Simple Security Partial Pro

Pro firewall uses automated access rules (404s, regions, IPs) rather than payload inspection.

WP Cerber Security Included

Traffic Inspector screens suspicious requests and code injection attempts.

Cloud / DNS-level firewallFirewall runs on the vendor's network in front of your server, not inside WordPress.
Really Simple Security Not included

Rules run on your own server.

WP Cerber Security Not verified
Brute-force protection KeyLimits failed logins and locks out attackers guessing passwords.
Really Simple Security Paid version Pro

Limit Login Attempts with configurable thresholds.

WP Cerber Security Included

Limits login attempts by IP address or Class C subnet.

Login CAPTCHACAPTCHA or Turnstile on login, registration and password reset forms.
Really Simple Security Paid version Pro

hCaptcha or reCAPTCHA with Limit Login Attempts.

WP Cerber Security Included

reCAPTCHA for WordPress and WooCommerce forms.

Rate limiting & bot blockingThrottles or blocks aggressive crawlers and bad bots.
Really Simple Security Paid version Pro

404 blocking stops crawlers triggering unusual numbers of 404s.

WP Cerber Security Included

Bot detection with traps and honeypots blocks automated and hacker activity.

Country blockingBlock or allow traffic by country.
Really Simple Security Paid version Pro

Region blocking allows or blocks access by region.

WP Cerber Security Paid version PRO

Rich GEO country rules are listed as a Professional version feature.

Real-time IP blocklistBlocks IPs known for attacks using shared threat intelligence.
Really Simple Security Not included

Pro offers manual IP block/allow lists; no shared threat-intel feed.

WP Cerber Security Paid version PRO

Cloud Global Black List maintained by Cerber Lab is a PRO feature.

Scanning & cleanup2/64/6
Malware scanner KeyScans files and database for malware, backdoors and injected code.
Really Simple Security Not included

Does not scan files or database for malware.

WP Cerber Security Included

Malware scanner checks files for trojans and injected code.

File change detectionCompares core, plugin and theme files with originals and flags changes.
Really Simple Security Not included

No comparison of files with originals.

WP Cerber Security Included

Integrity checker compares WordPress files with originals.

Vulnerability alerts KeyWarns when installed plugins, themes or core have known vulnerabilities.
Really Simple Security Included

Notifies about vulnerable plugins, themes and core (WP Vulnerability data).

WP Cerber Security Not verified
Scheduled scansRuns scans automatically on a schedule.
Really Simple Security Partial

Vulnerability checks recur automatically; there are no malware scans.

WP Cerber Security Paid version PRO

Automated hourly and daily scans with email alerts are PRO.

Off-site scanningScans run on the vendor's servers so they don't slow your site.
Really Simple Security Not included

No vendor-side scanning service.

WP Cerber Security Not verified
Malware removalOne-click or expert cleanup of infected sites.
Really Simple Security Not included

No cleanup tool or service.

WP Cerber Security Partial

Scanner can clean up malware and suspicious files; no expert cleanup service.

Login security4/53/5
Two-factor authentication KeySecond login factor via authenticator app, email or similar.
Really Simple Security Included

Free email 2FA enforceable per role; TOTP is Pro.

WP Cerber Security Included

Two-factor authentication for WordPress accounts.

Passkeys / WebAuthnPasswordless login with passkeys or hardware security keys.
Really Simple Security Paid version Pro

Passkey (WebAuthn) login in Pro.

WP Cerber Security Not verified
Password policiesEnforce strong passwords, expiry or breached-password checks.
Really Simple Security Paid version Pro

Enforce strong passwords and periodic password changes.

WP Cerber Security Not verified
Custom login URLMove or hide the wp-login.php / wp-admin login page.
Really Simple Security Paid version Pro

Custom login URL is part of advanced hardening.

WP Cerber Security Included

Custom login URL that renames wp-login.php.

Session managementView and end active user sessions, limit concurrent logins.
Really Simple Security Not included

No active session viewer or concurrent-login limits.

WP Cerber Security Paid version PRO

Console to monitor and terminate active user sessions in the PRO version.

Hardening4/51/5
One-click hardeningDisable XML-RPC, file editing, user enumeration and similar weak points.
Really Simple Security Included

Disable XML-RPC, user enumeration, directory browsing, uploads code execution.

WP Cerber Security Included

Disable XML-RPC, role-based REST API access, stop user enumeration.

SSL / HTTPS toolsEnforce HTTPS, fix mixed content and redirects.
Really Simple Security Included

One-click HTTPS, 301 redirects, secure cookies; mixed-content fixer in Pro.

WP Cerber Security Not verified
Security headersSet HSTS, CSP, X-Frame-Options and other HTTP security headers.
Really Simple Security Paid version Pro

HSTS, X-Frame-Options, Referrer-Policy and auto-generated CSP.

WP Cerber Security Not verified
Virtual patchingFirewall rules that block exploits for known plugin vulnerabilities before an update is available.
Really Simple Security Not included

No exploit-blocking rules for specific vulnerabilities.

WP Cerber Security Not included

No virtual patching for specific plugin vulnerabilities is described.

Auto-update vulnerable pluginsAutomatically updates plugins with known vulnerabilities.
Really Simple Security Paid version Pro

Can force updates or quarantine vulnerable plugins and themes.

WP Cerber Security Not verified
Monitoring & management1/33/3
Activity log KeyRecords logins, changes and admin actions for auditing.
Really Simple Security Not included

No audit trail of admin and content changes.

WP Cerber Security Included

Logs logins, logouts and other user activity.

Security alertsEmail or app alerts for attacks, lockouts and scan results.
Really Simple Security Included

Sends notifications when vulnerabilities are found.

WP Cerber Security Included

Email notifications plus weekly or monthly reports.

Multi-site dashboardManage security for many sites from one dashboard.
Really Simple Security Not included

Only a multisite network settings page; no multi-site dashboard.

WP Cerber Security Paid version PRO

Manage multiple WP Cerber installations from one dashboard.

Statuses: Yes Pro Add-on Partial 3rd-party No ?

Pricing compared

Really Simple Security Freemium

Free$0
Personal$69 per year, 1 site
Professional$119 per year, 5 sites
Agency$209 per year, 25 sites

WP Cerber Security Freemium

Free$0
Single$99 per year, 1 site
5 Value Pack$399 per year, 5 sites

Downloads trend

Really Simple Security

1,228,062 downloads last week

WP Cerber Security

No WordPress.org download data (premium-only plugin).

Verdict

Based on our feature data Checked 5 Oct 2026

WP Cerber Security scores higher on our feature checklist (69/100 against 54/100) and includes malware scanner, activity log and real-time IP blocklist that Really Simple Security does not. Paid plans start at $69/yr for Really Simple Security and $99/yr for WP Cerber Security. Check the features you rely on in the table below before deciding.

Biggest differences

Malware scanner

Really Simple Security: not included. WP Cerber Security: included. Malware scanner checks files for trojans and injected code.

Activity log

Really Simple Security: not included. WP Cerber Security: included. Logs logins, logouts and other user activity.

Real-time IP blocklist

Really Simple Security: not included. WP Cerber Security: paid version (PRO). Cloud Global Black List maintained by Cerber Lab is a PRO feature.

File change detection

Really Simple Security: not included. WP Cerber Security: included. Integrity checker compares WordPress files with originals.

Malware removal

Really Simple Security: not included. WP Cerber Security: partial. Scanner can clean up malware and suspicious files; no expert cleanup service.

Session management

Really Simple Security: not included. WP Cerber Security: paid version (PRO). Console to monitor and terminate active user sessions in the PRO version.

Written from the feature, pricing and install data on this page, not from hands-on testing. How we compare.

Which would you choose?

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FAQ

Which is better, Really Simple Security or WP Cerber Security?

WP Cerber Security scores higher on our feature checklist (69/100 against 54/100) and includes malware scanner, activity log and real-time IP blocklist that Really Simple Security does not. Paid plans start at $69/yr for Really Simple Security and $99/yr for WP Cerber Security. Check the features you rely on in the table below before deciding.

Which has more features?

WP Cerber Security includes 17 of the 26 features we track, against 16 for Really Simple Security. Feature count is only part of the picture; check which of the differences matter to you.

Is Really Simple Security free?

Really Simple Security has a free version on WordPress.org. Paid plans start at $69/yr.

Is WP Cerber Security free?

WP Cerber Security has a free version. Paid plans start at $99/yr.

Feature data last changed 5 Oct 2026. Spotted something wrong? Suggest an edit to Really Simple Security or WP Cerber Security. Some links are affiliate links. We may earn a commission at no cost to you; it never affects our data or rankings.