App Transport Security
App Transport Security (ATS) is a security feature introduced by Apple that enforces secure network connections for iOS, macOS, watchOS, and tvOS applications. It requires apps to use HTTPS instead of HTTP for all network communications, ensuring data is encrypted in transit and protecting against man-in-the-middle attacks. ATS is configured through an app's Info.plist file and is enabled by default in modern Apple development environments.
Developers should implement ATS when building apps for Apple platforms to comply with Apple's security guidelines and protect user data from interception. It is essential for apps handling sensitive information like login credentials, payment details, or personal data, as it prevents unencrypted network traffic that could be exploited by attackers. ATS is particularly critical for apps submitted to the App Store, as Apple may reject apps that do not properly secure network connections.