Sucuri Malware Research Team
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Security Education
668 posts
WordPress Vulnerability & Patch Roundup — July 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…
Why Your Website Might Be Throwing a 421 SNI Error (And What to Do About It)
Marc Kranat So, your support team is suddenly flooded with tickets about “421 Misdirected Request” errors, and you’re wondering if the internet is just having a bad…
Vulnerability & Patch Roundup — June 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…
Understanding SSRF: Abusing Server Trust from the Inside Out
Kyle Knight In our daily interactions online, trust is a fundamental currency. We trust servers to handle our data, process our requests, and reliably deliver content. But…
Vulnerability & Patch Roundup — May 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…
What Motivates Website Malware Attacks?
Ben Martin The depiction in the media of hackers tends to be that of balaclava-wearing villains who type furiously in a dark basement, motivated by nothing but…
Understanding CSRF: Cross-site Request Forgery Explained
Cross-Site Request Forgery, often called CSRF (or its other nicknames, Session Riding and XSRF), is a tricky type of attack. In short, it lets attackers…
Vulnerability & Patch Roundup — April 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…
MTR For Website Troubleshooting
Justin Daniel Let’s set the scene: You go to visit a website and you get a “connection timed out” error. Is this a browser, internet, firewall, or…
Easy Guide to Saving HAR Files and Console Logs for Troubleshooting
Maninder Toor When something goes wrong with a website – whether it is a broken design, slow performance, shows an error message or something else, it is…
Understanding FTP and SFTP: A Guide to Secure File Transfers
Updating your website means getting files to your server, but the process can feel like a chore when simply navigating in a conventional hosting panel.…