How to Protect Your Site From Content Sniffing with HTTP Security Headers

Ever had a perfectly “safe” page or file turn into an attack vector out of nowhere? That can happen when browsers start guessing what your content is instead of listening to your server. Browsers sometimes try to figure out what kind of file they’re dealing with if the server doesn’t provide the Content-Type header or provides the wrong one, a process known as “content sniffing.” While this can be helpful, content sniffing is a security risk if an attacker can mess with the content.

Continue reading How to Protect Your Site From Content Sniffing with HTTP Security Headers at Sucuri Blog.

Vulnerability & Patch Roundup — June 2026

Running a website means a single unpatched vulnerability can take it offline, harm your reputation, or require cleanup. Most compromises begin with automated attacks exploiting known software flaws, usually reported and disclosed already. To keep you protected from these threats, we’ve compiled this month’s key security updates and vulnerability patches for the WordPress ecosystem. If... Read More
 

PCI Compliance Isn’t a Checkbox: How to Secure Ecommerce Checkouts Before Attackers Arrive

A working checkout page is often the moment a business starts to feel real. The products are live, the cart is functional, payments are flowing, and orders are landing in your inbox. That is also when security shifts from a background concern to a real-world risk. Once your website starts accepting credit card payments, it... Read More
 

WordPress PBN Plugin Drops Dual Webshells via Database Injection

During a recent incident response engagement, our team uncovered a multi-stage WordPress infection that goes beyond the usual file-based malware. The attacker combined a fake plugin, a remote command-and-control server, and two PHP web shells stored directly inside the WordPress database. The campaign is operated by a Turkish-speaking threat actor and is built around a... Read More
 

Vulnerability & Patch Roundup — May 2026

If you run a website, you know that a single unpatched vulnerability can take your site offline, damage your reputation, or leave you cleaning up after an attack. Most compromises we see start with automated attacks targeting known software flaws, often the same ones that have already been reported and disclosed. To help you stay... Read More
 

WordPress Site Down? Here’s How to Get Back Online

If your WordPress site goes offline, every minute costs you lost sales, missed leads, and a dent in visitor trust. Search engines may start flagging errors, and customers see a blank page instead of your business. In that moment, the pressure is real: What broke, and how do you get back online before the damage... Read More
 

What to Do When a Third-Party Data Breach Puts Your Website at Risk

Data breach notification letters have become a familiar routine. They usually start with “We value your privacy” and offer a year of free credit monitoring. But the most important part is often hidden in the middle: A list of what actually got out. A leaked email address is not a leaked admin password. A hashed... Read More
 

DNSSEC: The Extra Security Layer That Can Break Your Padlock

Turning on DNSSEC makes your domain more secure — but if it’s misconfigured, newer certificate validation rules can stop SSL renewals in their tracks. Hey there, You know that satisfying click when you finally turn on DNSSEC? It feels like adding a shiny new deadbolt to your domain’s front door. You’re doing the responsible thing:... Read More
 

Vulnerability & Patch Roundup — April 2026

Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises. To help educate website owners about potential threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this... Read More
 

My Website Is Hosting a Phishing Page – Now What?

Most phishing advice is written for the person staring at a suspicious email. This guide is for the other kind of victim: The website owner whose legitimate site has been quietly turned into the attacker’s weapon. You didn’t send the message or build the fake login page. You just woke up to a browser warning,... Read More
 

WordPress DDoS Protection: How to Keep Your Site Online

WordPress powers over 40% of the web, which makes it one of the most attractive targets for Distributed Denial of Service (DDoS) attacks. If your site goes down for an hour, you lose revenue, search rankings, and visitor trust. If it goes down repeatedly, you lose much more. A DDoS attack floods your website with... Read More
 
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