What is TLS?
Transport Layer Security
It is the standard protocol that secures data exchange over the internet by encrypting it.
Overview
TLS is the security layer that prevents communication between two computers from being read or modified from the outside. The lock icon you see in your browser is an indicator that this protocol is working. It guarantees confidentiality and integrity by encrypting the data.
How it works
The moment a connection is established, a private encryption agreement is made between the two parties. Data is encrypted before being sent and decrypted when it reaches the other side.
Where it is used
It is used in HTTPS on websites, email transmission, and all secure network connections.
Commonly confused with
It is confused with a VPN; while a VPN tunnels the entire network, TLS generally protects application-layer connections.
Questions and answers
What is its former name?
Its former name is known as SSL, but today the current and secure version is TLS.
Can the encryption be broken?
When properly configured, it is nearly impossible to break with today's technology.
Related terms
Related tools
This explanation was written in plain language for TreScout with AI and machine-translated from the Turkish original · the Turkish version prevails. If something looks wrong or missing, write to hello@trescout.com. Read in Turkish →