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Insights & Research
Security Blog
Expert analysis on DNS security, TLS configuration, email authentication, and security posture monitoring — from the CyberShield team.
port-scanningOpen Ports and Attack Surface: What Exposed Services Reveal
Every open port is a potential entry point. Learn how attackers enumerate services, why unnecessary exposure is dangerous, and how to minimize your external attack surface.
CyberShield Team
8 min read
dnsSubdomain Takeover: How Dangling DNS Records Become Attack Vectors
Forgotten CNAME records pointing to deprovisioned services are one of the most overlooked vulnerabilities. Learn how subdomain takeover works and how to prevent it.
CyberShield Team
8 min read
whoisWHOIS and Domain Intelligence: What Your Registration Data Exposes
Domain registration records reveal more than you think. Learn how attackers use WHOIS data for reconnaissance and how to protect your domain registration details.
CyberShield Team
8 min read