Sucuri Malware Research Team
Puja Srivastava
Kyle KnightWhat 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…
Introducing Sucuri Academy: Your New Destination for Website Security Education
Pilar Garcia 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…
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.…
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…
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…
Troubleshooting WordPress: How to Fix the White Screen of Death (WSoD)
Rianna MacLeod 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…
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…
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…
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,…
How to Fix the “Deceptive Site Ahead” Warning
Did you just try to access your site and encounter a Deceptive Site Ahead warning? This error message occurs when the browser believes your website…
Vulnerability & Patch Roundup — August 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…