Add mitigation for ATT sign-in

[nshuba]

Asana Task/Github Issue: https://app.asana.com/0/1206670747178362/1208195541797157/f

Description

Reported URL: https://signin.att.com Issues logging into AT&T on Windows - fixed by adding exception for fingerprinting protection.

Reference

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions[bot]]

Generated file outputs:

legacy

fingerprinting.json (42 more)

- fingerprinting.json - protections.json - trackers-unprotected-temporary.txt - trackers-whitelist-temporary.txt - v1/android-config.json - v1/extension-brave-config.json - v1/extension-bravemv3-config.json - v1/extension-chrome-config.json - v1/extension-chromemv3-config.json - v1/extension-config.json - v1/extension-edg-config.json - v1/extension-edge-config.json - v1/extension-edgmv3-config.json - v1/extension-firefox-config.json - v1/extension-safarimv3-config.json - v1/ios-config.json - v1/macos-config.json - v2/android-config.json - v2/extension-brave-config.json - v2/extension-bravemv3-config.json - v2/extension-chrome-config.json - v2/extension-chromemv3-config.json - v2/extension-config.json - v2/extension-edg-config.json - v2/extension-edge-config.json - v2/extension-edgmv3-config.json - v2/extension-firefox-config.json - v2/extension-safarimv3-config.json - v2/ios-config.json - v2/macos-config.json - v3/android-config.json - v3/extension-brave-config.json - v3/extension-bravemv3-config.json - v3/extension-chrome-config.json - v3/extension-chromemv3-config.json - v3/extension-config.json - v3/extension-edg-config.json - v3/extension-edge-config.json - v3/extension-edgmv3-config.json - v3/extension-firefox-config.json - v3/extension-safarimv3-config.json - v3/ios-config.json - v3/macos-config.json ⚠️ File is identical

v1/windows-config.json (2 more)

- v1/windows-config.json - v2/windows-config.json - v3/windows-config.json ```diff --- v3/windows-config.json +++ v3/windows-config.json @@ -5321,8 +5321,12 @@ }, { "domain": "target.com", "reason": "https://github.com/duckduckgo/privacy-configuration/issues/2225" + }, + { + "domain": "signin.att.com", + "reason": "https://github.com/duckduckgo/privacy-configuration/pull/2281" } ], "state": "enabled", "minSupportedVersion": "0.88.3" ```

latest

v4/android-config.json (12 more)

- v4/android-config.json - v4/extension-brave-config.json - v4/extension-bravemv3-config.json - v4/extension-chrome-config.json - v4/extension-chromemv3-config.json - v4/extension-config.json - v4/extension-edg-config.json - v4/extension-edge-config.json - v4/extension-edgmv3-config.json - v4/extension-firefox-config.json - v4/extension-safarimv3-config.json - v4/ios-config.json - v4/macos-config.json ⚠️ File is identical

v4/windows-config.json

```diff --- v4/windows-config.json +++ v4/windows-config.json @@ -4918,8 +4918,11 @@ "domain": "flexmls.com" }, { "domain": "target.com" + }, + { + "domain": "signin.att.com" } ], "state": "enabled", "minSupportedVersion": "0.88.3" ```