The Bug Circuit blog

Website security, in plain English

Practical guides for small-business owners: how to check and fix the things that actually get websites hacked — no jargon, no fear-mongering, no fluff.

What Is a Security Header? The 5 You Need
Guides

What Is a Security Header? The 5 You Need

Plain-English guide to security headers: what they are, the 5 every small site needs (CSP, HSTS, and more), and exact code to add them.

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Fix Chrome's "Deceptive Site Ahead" Warning
Fixes

Fix Chrome's "Deceptive Site Ahead" Warning

Chrome's red 'Deceptive site ahead' screen means Google flagged your site for phishing. Here's exactly what triggers it and how to get it removed fast.

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Is Wix or Squarespace Secure? What They Do & Don't Cover
Guides

Is Wix or Squarespace Secure? What They Do & Don't Cover

Wix and Squarespace lock down servers and SSL for you, but weak passwords, bad embeds, and missing DNS records still leave your site exposed. Here's the full picture.

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What Is CSRF? The Attack Using Your Login
Guides

What Is CSRF? The Attack Using Your Login

CSRF tricks your logged-in browser into changing settings, adding users, or redirecting payouts—no password needed. Here's how it works and how to stop it.

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Is Shopify Secure? What You Still Own
Guides

Is Shopify Secure? What You Still Own

Shopify secures its servers and checkout — but apps, themes, staff logins, and phishing are still on you. Here's the exact line and how to check it.

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WooCommerce Security Checklist for Stores
Guides

WooCommerce Security Checklist for Stores

A do-it-today WooCommerce security checklist: patch discipline, admin lockdown, PCI-safe checkout, and headers to stop plugin-sprawl breaches.

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How to Stop Brute-Force Attacks on WordPress Login
Guides

How to Stop Brute-Force Attacks on WordPress Login

The WordPress login-hardening stack explained: which defenses actually stop brute-force attacks, which are theater, and exact steps to set them up.

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What a Website Security Audit Report Looks Like
Guides

What a Website Security Audit Report Looks Like

See a real, annotated sample security audit report — findings, severity ratings, and plain-English fixes — before you pay for one.

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Sucuri vs Wordfence: Which One Do You Need?
Guides

Sucuri vs Wordfence: Which One Do You Need?

Sucuri vs Wordfence compared plainly: what each firewall actually protects, which one fits your WordPress site, and the gap neither tool checks.

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What Is Cross-Site Scripting (XSS)? Plain-English Guide
Guides

What Is Cross-Site Scripting (XSS)? Plain-English Guide

XSS lets attackers run their own code in your visitors' browsers. Learn how it works, whether your contact form is exposed, and exactly how to fix it.

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What Is a Website Vulnerability? Explained Simply
Guides

What Is a Website Vulnerability? Explained Simply

A plain-English guide to what website vulnerabilities actually are, how vulnerability differs from exploit and risk, and what Critical/High/Medium/Low severity means.

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What Is SQL Injection? How a Form Leaks Data
Guides

What Is SQL Injection? How a Form Leaks Data

SQL injection lets one unprotected search box or login field expose your whole customer database. Learn how it works, why size doesn't protect you, and how to fix it.

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Domain Blacklisted? How to Delist and Recover
Incident Response

Domain Blacklisted? How to Delist and Recover

Blacklisted domain? Here's how to delist from Spamhaus, Barracuda, and Google Safe Browsing — and fix the compromise so you don't get re-listed.

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Why Is My Website Sending Spam Emails? (Fix It)
Incident Response

Why Is My Website Sending Spam Emails? (Fix It)

Your host flagged spam coming from your site? Learn how to confirm it, find the hidden mailer script, remove it, and stop the next suspension.

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Host Suspended Your Site for Malware? Do This
Incident Response

Host Suspended Your Site for Malware? Do This

Your web host suspended your site for malware. Here's exactly how to find the infection, clean it, prove it's gone, and get reinstated without it happening again.

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Website Redirecting to Spam? How to Stop It
Fixes

Website Redirecting to Spam? How to Stop It

Site sending visitors to spam pages? Learn the 4 spots redirect hacks hide (.htaccess, injected JS, WP database, DNS) and how to trace and fix each one fast.

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Fix the 'Not Secure' Warning on Your Website
Fixes

Fix the 'Not Secure' Warning on Your Website

Plain-English fix for the browser 'Not Secure' warning: install an SSL certificate, force HTTPS, and clear mixed-content errors — no developer needed.

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12 Signs Your Website Has Been Hacked
Incident Response

12 Signs Your Website Has Been Hacked

A plain-English checklist of 12 warning signs your website may be hacked—from Google warnings to bounced email—plus how urgent each one is and what to do next.

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