SMTP has no built-in security — messages are unencrypted and can be forged. SMTP-AUTH adds authentication that prevents unauthorised relay while enabling legitimate use from anywhere. … More SMTP-AUTH: Securing Email Transmission and Preventing Spam Relay
TLS is the successor to SSL and provides encryption, authentication, and data integrity. Covers the TLS handshake, TLS vs SSL differences, and the four design goals. … More Transport Layer Security (TLS): How It Protects Your Data in Transit
FTP transmits credentials and data in cleartext, making it vulnerable to sniffing and MITM attacks. Covers SFTP migration, anonymous FTP risks, and traffic security controls. … More FTP Security: Risks, SFTP Migration, and Securing File Transfer
The DMZ sits between the internet and your internal network, but protocols operating within it carry inherent vulnerabilities. Covers DMZ architecture, internal vs external attacks, and countermeasures. … More DMZ Protocol Attacks: Threats to Your Network’s Buffer Zone
