Breach Horizon
Guides index

Cybersecurity guides

Search-focused articles that answer real SMB and MSP security questions with practical remediation steps.

Attack Surface

Subdomain Takeover Basics

What subdomain takeover risk looks like and how to prioritize cleanup safely.

6 min read
Google Workspace

Google Workspace Sharing Risks

How to review public/shared files, external sharing defaults, and admin controls.

7 min read
Microsoft 365

Microsoft 365 Admin Hygiene

Admin-role, break-glass, and alert-review basics for SMB Microsoft 365 tenants.

8 min read
Email Security

Business Email Spoofing Test

How to check whether attackers can spoof your business domain and what to fix first.

6 min read
Vendor Reviews

Vendor Security Questionnaire Prep

How SMBs can prepare security questionnaire answers without overclaiming controls.

9 min read
Ransomware

Ransomware Backup Questions to Ask

Questions that expose whether backups can actually support recovery after ransomware.

7 min read
Identity

MFA Everywhere Rollout Plan

A practical rollout plan for MFA coverage across admin, email, VPN, and business apps.

8 min read
Insurance

Cyber Insurance Evidence List

Evidence to gather before cyber insurance renewal, from MFA to backups and email security.

10 min read
Web Security

Should You Enable HSTS Preload?

A decision guide for HSTS preload, HTTPS enforcement, and rollback risk.

6 min read
Web Security

Security Headers in Cloudflare

How to add practical security headers without breaking a small business website.

9 min read
Email Security

How to Fix SPF Lookup Limit Risk

What the SPF 10-DNS-lookup limit means and how SMBs can reduce failure risk.

7 min read
Email Security

DMARC Rollout for Small Business

A safe DMARC rollout path from monitoring to reject without breaking legitimate email.

8 min read