What is Secure Sockets Layer (SSL)?

Secure Sockets Layer (SSL) is an older cryptographic protocol originally designed to secure data exchanged between a client and a server, especially across web sessions. In modern cybersecurity, the term “SSL” is still widely used, but secure websites and enterprise applications now rely on Transport Layer Security (TLS), the successor to SSL.

Secure sockets layer in cybersecurity matters because encrypted communication protects credentials, session data, payment information, administrative traffic, and business records from interception or tampering. However, SSL itself is obsolete and should not be enabled in production systems. IT teams should use current TLS versions, trusted certificates, and strong configuration controls instead.

How does SSL work?

SSL established a secure channel through a handshake process. During this exchange, the client and server agreed on encryption settings, validated identity using a digital certificate, and created session keys to encrypt traffic.

That model shaped how HTTPS security works today. When a user connects to a secure website, the browser checks whether the certificate is trusted, whether the domain matches, and whether the connection can use an approved cryptographic protocol. If validation succeeds, data moves through an encrypted tunnel.

SSL vs TLS: what is the difference?

Why is SSL still discussed in cybersecurity?

SSL remains common in search behavior, vendor language, certificate discussions, and IT documentation. Many teams say “SSL certificate” when they mean a TLS certificate used for HTTPS.

For security teams, the key point is not the name but the configuration. Weak protocols, expired certificates, incomplete certificate chains, insecure cipher suites, and unmanaged endpoints can break trust or expose sensitive traffic.

How Hexnode strengthens SSL/TLS-related endpoint security

Hexnode helps organizations protect the endpoints that depend on trusted encrypted communication. Through unified endpoint management, IT teams can enforce device policies, deploy certificates, configure Wi-Fi and VPN access, restrict risky apps, maintain compliance posture, and improve visibility across managed devices.

This matters because encrypted sessions are only as trustworthy as the devices, identities, and configurations using them. Hexnode supports a stronger security baseline by helping IT teams manage endpoint trust at scale.

What should IT teams do instead of using SSL?

Organizations should disable SSL, avoid outdated TLS versions, use TLS 1.2 or TLS 1.3, automate certificate management where possible, and monitor certificate expiry. They should also ensure managed devices receive security updates, use trusted network profiles, and follow policy-based access controls.