Adelaide, Australia

Security assessments for Australian SMBs

Independent cybersecurity research focused on what matters most — finding the gaps before someone else does. Domain security assessments, email authentication auditing, and attack surface analysis.

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46
Domains scanned
85%
No enforcing DMARC
30%
High or critical risk
6
Checks per domain

Services

What I check

Every assessment uses publicly available data — the same information visible to potential attackers. No systems are accessed, no passwords are tested.

✉️

Email Authentication

SPF, DMARC, and DKIM configuration checks. Without these, anyone can send emails impersonating your business — the #1 method in invoice fraud.

🔒

SSL/TLS Certificates

Certificate validity, expiry monitoring, and TLS version checks. Expired certificates trigger browser warnings that scare off customers.

🛡️

Web Security Headers

Analysis of six critical HTTP security headers that protect against cross-site scripting, clickjacking, and protocol downgrade attacks.

🔍

Open Port Analysis

Scanning for exposed services, admin panels, and development servers that should not be publicly accessible.

📈

Security Reports

Clear, plain-English reports with specific findings, risk ratings, and actionable fix instructions. No jargon, no upselling.

🔎

OSINT Reconnaissance

Subdomain enumeration, exposed services, technology fingerprinting, and leaked credential checks using open source intelligence.

domain-security-scan
$ scanning example-business.com.au...

[PASS] SPF Record — hard fail (-all) configured
[FAIL] DMARC Record — no DMARC policy found
[WARN] DKIM — no records for common selectors
[PASS] SSL Certificate — valid, expires in 142 days
[FAIL] Security Headers — 4 of 6 missing
[PASS] Open Ports — no unexpected ports

Overall Risk: HIGH
Report saved to: reports/example-business.com.au.txt

About

Jiae Black

Independent cybersecurity researcher based in Adelaide, South Australia, operating under Mockingjay Studio. My focus is on the security posture of Australian small and medium businesses — specifically, the gap between what businesses think they have configured and what is actually there.

I recently scanned 46 Australian SMB domains across multiple industries and found that 85% had no enforcing DMARC policy, meaning their email domains could be impersonated by anyone. 30% rated HIGH or CRITICAL risk. These are not theoretical vulnerabilities — they are real gaps in real businesses that attackers can exploit today.

My background is in offensive security, OSINT, and Python development — all self-taught through years of hands-on practice. I built a custom domain security scanner that automates the checks I perform, and I use it to provide businesses with clear, actionable findings they can fix immediately.

I believe most small businesses do not need expensive security solutions. They need the basics done right — and someone willing to tell them where the gaps are.


Contact

Get in touch

Want a free scan of your domain? Have questions about your email security? Reach out — no obligation, no sales pitch.

Request a free scan

Send your domain name and I will run a security assessment — no cost, no obligation. You will receive a plain-English report with findings and fix instructions.