A Secure cookie is a browser cookie marked so it should be sent only over encrypted HTTPS connections. It matters because session material is more exposed when browsers can send it over insecure transport.
What is Secure Cookie?
The Secure attribute tells browsers not to include the cookie in plain HTTP requests. It is commonly used for authentication and session cookies so they are less likely to be exposed over unencrypted network traffic.
What Secure Cookie Commonly Supports
Common benefits include safer session transport, better cookie protection on public networks, and stronger alignment with HTTPS-only application design.
Secure Cookie vs. Cookie Sent Over HTTP
A cookie without the Secure attribute may be sent over unencrypted HTTP in some scenarios. A Secure cookie is restricted to encrypted HTTPS transport.
Frequently Asked Questions
Why is the Secure attribute important?
Because it helps keep sensitive cookies from traveling over weaker transport channels.
Is Secure enough by itself?
No. Good cookie security usually combines Secure with other controls such as HttpOnly and SameSite.
