Business Email Security Check
A focused, passive check of the controls that help stop criminals from impersonating your business by email.
$29See what is includedIndependent security visibility for business owners
Know whether the protections your business relies on are actually working.
SunTzu Cybersecurity Labs provides authorized, non-destructive external assessments that turn technical exposure into clear business decisions.
- Authorization first
- Non-destructive testing
- Reviewed reports
Free Website Security Diagnostic
Explore the free diagnostic What is your website telling the Internet?
A quick look at your website, email protections, and public information—so you know where a closer look may be worthwhile.
A simple first check
Start with business email impersonation risk.
The $29 Business Email Security Check is the quickest way to get a secure, prioritized report. Broader assessments remain available when you need them.
Basic External Website Security Scan
A focused, externally observable review of one authorized public website.
$149Start this assessmentAdvanced External Website Security Scan
A deeper authorized assessment for a modern public website or web application.
$399Start this assessmentEmail Trust & Impersonation Review
An externally observable review of email authentication, trust, and impersonation resistance.
$149Start this assessmentWhy an independent assessment?
Clear evidence without replacing your IT team.
Independent perspective
See your public-facing security the way a customer, insurer, or attacker can see it.
Signal, not scanner noise
Findings are reviewed, explained in plain language, and ordered by practical importance.
A measurable baseline
Establish where you are today, then track meaningful changes through continuous monitoring.
“Know the enemy and know yourself.”— Sun Tzu
MSPs and service providers
See the MSP pathOrdering on behalf of a client?
Select the MSP relationship during onboarding, identify the target organization, and complete a target-specific authorization.