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…
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How to Protect Your WordPress Site From a Phishing Attack
If you run a website, manage a business inbox, or even just use online banking, you’ve already lived in the phishing era for a long time. The only thing that’s changed is the polish. Phishing scams have moved past those obviously fake “please verify” requests to include convincing…
WordPress Auto-Login Backdoor Disguised as JavaScript Data File
During a recent investigation, we discovered a sophisticated WordPress backdoor hidden in what appears to be a JavaScript data file. This malware automatically logs attackers into administrator accounts without requiring any credentials. In September, we published an article showcasing another WordPress backdoor that creates admin accounts. This new…
Vulnerability & Patch Roundup — November 2025
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…
A Beginner’s Guide to the CVE Database
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…
How to Fix the ERR_TOO_MANY_REDIRECTS Error
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…
How to Choose WordPress Caching Options
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…
Slot Gacor: The Rise of Online Casino Spam
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…
Vulnerability & Patch Roundup — October 2025
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…
Denial-of-Service (DoS) Attacks: What They Are, How They Work, and How to Defend Your Site
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…
Contact Form Spam Attack: An Innocent Feature Caused a Massive Problem
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…
What Is a 501 Error & How to Fix It
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…
Introducing Sucuri Academy: Your New Destination for Website Security Education
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…
Malvertising Campaign Hides in Plain Sight on WordPress Websites
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…
Vulnerability & Patch Roundup — September 2025
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…
Enhancing File Transfer Security with SSH Key Authentication
Attackers scan for TCP 22 and 2222 around the clock. When they find an open port, they launch credential-stuffing lists harvested from previous leaks, brute-force scripts, and even malware that hunts for hard-coded passwords in deployment repositories. Verizon’s 2025 Data Breach Investigations Report (DBIR) continues to show stolen…
Troubleshooting WordPress: How to Fix the White Screen of Death (WSoD)
Navigating to your WordPress site only to be met with the White Screen of Death (WSoD) can be a daunting experience. This error denies access to your site for both administrators and visitors, disrupting your website’ s performance and user experience. Despite its prevalence, this common WordPress problem has…
Hidden WordPress Backdoors Creating Admin Accounts
During a recent cleanup of a compromised WordPress website, we discovered two different malicious files designed to silently manipulate administrator accounts. Attackers often inject such backdoors to maintain persistent access to a site, even if their other malware is detected and removed. These files were disguised to look…
Understanding Spamhaus and Its Role in Email Security
In an era when email remains one of the most important forms of communication for business, commerce, and personal use, ensuring that emails reach their intended recipients (and don’t end up in spam, or worse, aiding cybercrime) is more important than ever. One of the often “behind‐the‐scenes” organizations…
Choosing the Best CMS for Your Needs
Knowing which is the right CMS is key when launching a new site. Websites are no longer just online brochures; they’ re where businesses sell products, protect private information, chat with customers, and build their entire online brand. A good CMS gives you flexibility, room to grow, and strong…
