Email Security

**Email Security** — Protect your emails from hacks, phishing, and unauthorized access.

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When Vendors Control Your DNS: A Hidden DMARC Security Risk

A real-world example of how third-party DNS control can silently block DMARC visibility, redirect domain telemetry, and introduce serious email security and data exposure risks.

When Vendors Control Your DNS: A Hidden DMARC Security Risk
Email Security
2.3 million emails. One exposed API key. $10K bill.

How DMARC forensics exposed an API key leak, 2.3M unauthorized emails, and a $10K bill.

2.3 million emails. One exposed API key. $10K bill.
Email Security
Backscatter Injection Attacks Exploiting Legitimate Infrastructure

Attackers use backscatter emails to bypass filters, harming servers and delivering phishing content.

Backscatter Injection Attacks Exploiting Legitimate Infrastructure
Email Security
The Risks of Abruptly Enforcing DMARC p=reject in Organizations

Sudden DMARC enforcement can disrupt workflows, block emails, and impact organizational operations significantly.

The Risks of Abruptly Enforcing DMARC p=reject in Organizations
Email Security
How a Fake Bank Transfer Email Nearly Fooled Me

Spoofed emails can mimic trusted senders, highlighting risks in elementary school communications.

How a Fake Bank Transfer Email Nearly Fooled Me
Email Security
Why Subdomain DMARC Policies Are Often Unnecessary

Proper DMARC enforcement on the root domain protects non-existent subdomains without needing separate policies.

Why Subdomain DMARC Policies Are Often Unnecessary
Email Security
Why Regular Password Changes Still Matter in Real Cybersecurity

Even with MFA, forced password resets help contain breaches and limit ongoing attacker access.

Why Regular Password Changes Still Matter in Real Cybersecurity
Email Security