Russian threat actors have been abusing legitimate OAuth 2.0 authentication workflows to hijack Microsoft 365 accounts of employees of organizations related to Ukraine and human rights.

Oleg Dulin Oleg Dulin OAuth 2.0 authorization flow. The third-party app is unaware of the user’s credentials. You, as the resource owner, own your data stored on the resource server. A third ...

Google has been supporting OAuth for access to Gmail since 2010, but the framework’s version 2.0 adds a number of security features and also simplifies things for developers.