Website Security News

Keeping websites and applications secure starts with knowing which vulnerabilities exist, how severe they are, and whether they affect your stack. That’s exactly where the CVE program shines. Below, we’ll cover some CVE fundamentals, including what they are, how to search and understand the data, and how to translate this information into actionable steps. Introduction to the CVE database So, what is CVE? CVE stands for Common Vulnerabilities and Exposures, a community-driven program that assigns unique identifiers to publicly known vulnerabilities. Continue reading A Beginner’s Guide to the CVE Database at Sucuri Blog.

Encountering the ERR_TOO_MANY_REDIRECTS error (also called a redirect loop error) can be frustrating, especially when your website was working fine just moments ago. This issue is common across browsers such as Chrome, Firefox, and Edge and it typically means your site has entered a redirection loop. In this post, you’ll learn what the error means, why it occurs, ways to identify where the redirect is coming from, and how to fix it effectively – including an important section on redirect types, which often play a direct role in causing this issue. Continue reading How to Fix the ERR_TOO_MANY_REDIRECTS Error at Sucuri Blog.

If you want a faster WordPress site, caching belongs at the center of your performance plan. It reduces the work your server has to do and turns slow, dynamic page builds into quick, static responses. On many unoptimized sites, that shift alone can reduce several seconds off page loads when paired with other best practices. The trick isn’t whether to cache but how to pick the right caching approach for your site’s content, traffic, and infrastructure. Continue reading How to Choose WordPress Caching Options at Sucuri Blog.

Online casino spam has been without a doubt one of the most prevalent types of spam content that we’ve seen on infected websites in recent years. An extremely common method of promoting low-quality or otherwise undesirable websites is for spammers to hack websites and fill them full of backlinks to pump their SEO. Historically this has been most common with pharma spam as well as essay writing services, knockoff designer goods and others. However, in the last period there’s been an unmistakable shift to online casinos. Continue reading Slot Gacor: The Rise of Online Casino Spam at Sucuri Blog.

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 past month. The vulnerabilities listed below are virtually patched by the Sucuri Firewall and existing clients are protected. Continue reading Vulnerability & Patch Roundup — October 2025 at Sucuri Blog.

If your website suddenly crawls to a halt, pages time out, or customers report they can’t log in, you might be staring down a Denial-of-Service (DoS) attack. These incidents don’t require exotic zero-days or deep levels of access. More often, they’re brutally simple: overwhelm the target with traffic or requests until legitimate users can’t get through. For online businesses, the end result is the same: lost revenue, support tickets piling up, and shaken trust. Below we’ll go over some DoS basics: what a DoS attack is, how it differs from distributed variants (DDoS), what happens under the hood, common techniques, the warning signs, and practical steps to reduce your risk and respond effectively. Continue reading Denial-of-Service (DoS) Attacks: What They Are, How They Work, and How to Defend Your Site at Sucuri Blog.

How a simple “Send a copy to yourself” feature led to 149,700 spam emails and what you can do to prevent it The Emergency Call It started like many server emergencies do – with a panicked message about massive server performance issues. A client’s website was grinding to a halt, CPU usage was through the roof, and something called dovecot/lmtp was consuming enormous resources. But this wasn’t just a performance problem – it was the beginning of uncovering a sophisticated spam operation hiding in plain sight. Continue reading Contact Form Spam Attack: An Innocent Feature Caused a Massive Problem at Sucuri Blog.

When a website fails, your browser returns an HTTP status code that’s short, technical, and often cryptic. You’ve probably seen 404 Not Found or 500 Internal Server Error. Less common, but just as disruptive, is 501 Not Implemented. This guide explains what a 501 error actually means, how it presents in browsers, what typically causes it, how it can affect user trust and SEO, and the most effective, platform‑agnostic steps to resolve it. Continue reading What Is a 501 Error & How to Fix It at Sucuri Blog.

Learn. Secure. Lead. We’re excited to introduce the beta launch of Sucuri Academy—a cutting-edge learning platform designed to empower website owners, developers, and digital professionals with the skills to defend against cyber threats. Whether you’re just starting out or looking to master advanced security techniques, Sucuri Academy offers structured, expert-led courses to help you protect your digital assets with confidence. Why Sucuri Academy? In today’s digital landscape, website security is no longer optional, it’s essential. Continue reading Introducing Sucuri Academy: Your New Destination for Website Security Education at Sucuri Blog.

Recently, one of our customers noticed suspicious JavaScript loading across their WordPress website. Visitors were being served third-party scripts that the site owner never installed. After investigation, we discovered the infection originated from a malicious modification in the active theme’s functions.php file. This injected PHP code silently fetched external JavaScript from attacker-controlled domains and inserted it into the site’s front-end. Behind the Breach We found a suspicious script loading on the client’s website. Continue reading Malvertising Campaign Hides in Plain Sight on WordPress Websites at Sucuri Blog.

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 past month. The vulnerabilities listed below are virtually patched by the Sucuri Firewall and existing clients are protected. Continue reading Vulnerability & Patch Roundup — September 2025 at Sucuri Blog.