How to Identify and Strengthen Weak SSL | UpGuard

This article describes SSL/TLS fundamentals, common weak or insecure configurations (expired or untrusted certificates, SSLv2/SSLv3/TLS1.0, RC4/3DES/MD5, weak hashes), how to detect them (including using automated scans such as UpGuard), and concrete mitigations—update to TLS 1.2+, prefer ECDHE/AES-GCM, disable weak ciphers/algorithms, enforce HSTS, automate certificate renewal, and ensure certificates are issued by trusted authorities.