OAuth

OAuth is a widely recognized authorization framework that enables applications to securely access user data from other services without revealing the user's password. Rather than sharing login details, it utilizes authorization tokens to provide specific permissions for a limited duration. This mechanism allows users to authorize one application to act on their behalf with another without disclosing their password.

OAuth is fundamental to contemporary application security, facilitating secure and seamless interactions online. It permits users to provide restricted access to their information without the need to share passwords, which is beneficial in various common scenarios. Some of the most common applications include:

Although OAuth improves security by removing the necessity to share passwords, its implementation presents a significant security risk. Proper setup is essential to avoid typical vulnerabilities and safeguard user data from exposure.

OAuth and OpenID Connect, while frequently used together, have different yet complementary roles in application security.

Always opt for OAuth 2.0, as it offers enhanced security and is tailored for modern web and mobile applications. Ensure that all communications are conducted over HTTPS to secure tokens during transmission. Use short-lived access tokens with a defined expiration and revocation plan to minimize the risk for attackers.