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, a suspended hosting account, or a polite note from someone’s security team asking why your domain is requesting Apple ID credentials.

Continue reading My Website Is Hosting a Phishing Page – Now What? at Sucuri Blog.

What is 2FA?

Two-factor authentication (2FA) offers a second layer of security to help protect an account from brute force, phishing, and social engineering attacks.

2FA requires an extra step for a user to prove their identity, which reduces the chance of a bad actor gaining access to their account or data. And since notifications are sent to verify the initial authentication via username and passwords, it also gives users and business the ability to monitor for potential indicators of a compromise.

Continue reading Why 2FA SMS is a Bad Idea in 2026 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 — March 2026 at Sucuri Blog.

If you own a WordPress website and ever encountered the “Not Secure” warning, you might have worried that visitors would perceive your site as spam or fraudulent. Not only does this warning impact user trust, but it can also create technical search issues when both HTTP and HTTPS versions of your pages remain accessible or when redirects, canonicals, and sitemaps point to different URL versions. Browsers show the visible security warning, while search engines rely on permanent redirects, canonical URLs, and updated sitemaps to understand your preferred HTTPS pages.

Continue reading How to Fix “Not Secure” Warnings and SSL Issues in WordPress (8 Steps) at Sucuri Blog.

Web shells are malicious scripts that give attackers persistent access to compromised web servers, enabling them to execute commands and control the server remotely. These scripts exploit vulnerabilities like SQL injection, remote file inclusion (RFI), and cross-site scripting (XSS) to gain entry.

Once deployed, web shells allow attackers to manipulate the server, leading to data theft, website defacement, or serving as a launchpad for further attacks. They are especially dangerous because they are also a post-compromise access mechanism (backdoor) rather than a standalone infection.

Continue reading Web Shells: Types, Mitigation & Removal 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 — February 2026 at Sucuri Blog.

As breach costs go up and attackers focus on common web features like dashboards, admin panels, customer portals, and APIs, weak access control quickly leads to lost data, broken trust, and costly incidents. The worst part is that many failures are not rare technical flaws but simple mistakes, such as missing permission checks, roles with too much power, or predictable IDs in URLs.

This post aims to help you control who can access different parts of your website and explain why it matters. 

Continue reading Beyond Login Screens: Why Access Control Matters 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 — January 2026 at Sucuri Blog.

Many website owners follow a similar “security plan,” even if they don’t call it that. They launch the site, add a couple of plugins, and just hope nothing goes wrong.

The issue is that modern website hacks don’t make themselves obvious. Instead, they show up as small signs, like a redirect that only affects mobile users, a hidden credit card skimmer in a template file, silent SEO spam that hurts your rankings, or a DNS change that quietly reroutes your email.

Continue reading How to Run a Security Test and Set Up Continuous Monitoring at Sucuri Blog.

We recently handled a case where a customer reported strange SEO behavior on their website. Regular visitors saw a normal site. No popups. No redirects. No visible spam.

However, when they checked their site on Google, the search results were flooded with eBay-type-looking websites and “Situs Toto” gambling spam.

This is a professional-grade SEO cloaking attack. The malware turns the application into a double agent: it serves your genuine website content to real people but swaps it for a massive list of gambling ads the second a search engine bot crawls the page.

Continue reading Google Sees Spam, You See Your Site: A Cloaked SEO Spam Attack 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 — December 2025 at Sucuri Blog.

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.

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 login pages, realistic invoices, and even bogus delivery updates. Some are mass-sent and easy to spot, others are customized precisely for the person they’re targeting, their job, company, tech, and everyday apps.

Continue reading How to Protect Your WordPress Site From a Phishing Attack 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 — November 2025 at Sucuri Blog.

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.

Logan Lembke // Living in the information age is great, isn’t it? With just a visit to the internet you can learn what happened in London on September 2nd, 1666, […]

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