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WordPress Security August 12, 2026 2 Views

How to Fix "Your connection is not private" (NET::ERR_CERT_AUTHORITY_INVALID)

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Nexura Security
Security Researcher
How to Fix "Your connection is not private" (NET::ERR_CERT_AUTHORITY_INVALID)

Nothing scares away potential customers faster than a Google Chrome error page reading: "Your connection is not private."

This error usually comes with the scary subtext: Attackers might be trying to steal your information (for example, passwords, messages, or credit cards). If your website is showing this error, you are losing traffic and sales by the minute.

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What Causes "Your connection is not private"?

This warning is an SSL/HTTPS issue. When a browser connects to a website, it checks the site's SSL certificate to ensure the connection is encrypted. If the browser cannot verify the certificate, it throws the "Your connection is not private" error (also known as NET::ERR_CERT_AUTHORITY_INVALID).

Common causes include:

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  • Your SSL certificate has expired.
  • The SSL certificate was issued by an untrusted authority.
  • Your website has "Mixed Content" (loading insecure HTTP assets on a secure HTTPS page).

How to Fix It Permanently

Step 1: Renew or Install a Valid SSL Certificate

Check with your hosting provider to ensure your SSL certificate is active. If it has expired, you can easily issue a free Let's Encrypt certificate through your cPanel.

Step 2: Fix Mixed Content Warnings

Sometimes, your SSL is valid, but hackers or poorly coded plugins are forcing your site to load insecure HTTP scripts. This is where Nexura Security comes in.

  • Install the Nexura Security plugin.
  • Use its advanced hardening features to force strict HTTPS connections and patch mixed-content vulnerabilities.

Step 3: Harden Your Site's Security

An invalid SSL certificate can sometimes be the result of a DNS hijack or malware tampering with your .htaccess file. Nexura Security locks down your core files, ensuring that no attacker can modify your SSL routing or redirect your traffic to an unencrypted, dangerous server.

Stop losing customers to the "Your connection is not private" warning. Ensure your site is always encrypted, safe, and secure with Nexura Security.

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Nexura Security Team

Nexura Security Research Team

WordPress Security Experts

The Nexura Research Team continuously monitors the WordPress ecosystem for emerging threats, zero-day vulnerabilities, and malware trends. Our mission is to provide actionable intelligence to keep your websites secure, fast, and resilient against modern cyber attacks.

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Written by Nexura Security

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