1. Introduction

1. Introduction

The Real-Time Communication in WEB-browsers (RTCWeb) working group was charged with standardizing protocols for real-time communications between Web browsers, generally called "WebRTC" [RFC8825]. A major use case for WebRTC is direct video and audio communication between two browsers. This communications mode offers a number of security benefits (e.g., end-to-end authentication and encryption) but also introduces new dangers (e.g., using the browser to attack services located behind a firewall). This document defines the security threats and requirements for WebRTC and describes how the WebRTC security architecture [RFC8827] addresses these threats.