OAuth grants can pose security risks if users do not fully understand the permissions they are granting [1] [3]. This can lead to unintended access to corporate environments by malicious actors. To address these risks, it is crucial for security and IT teams to programmatically review both new and existing OAuth grants. This improved text will provide a detailed description of best practices for mitigating these risks.


To mitigate the security risks associated with OAuth grants, several best practices should be followed. First, it is important to review grants in real-time or require administrative approval before employees can use them [3]. This ensures that only authorized individuals have access to sensitive corporate environments.

Ongoing audits should also be conducted to detect any high-risk activity or changes [2] [3]. By prioritizing investigations based on the scope of access each grant provides [2] [3], attention can be focused on grants with higher risks. Additionally, it is crucial to assess the trustworthiness of the vendor responsible for issuing the grant. This can be done by reviewing their security page, certifications [3], and reputation [2] [3]. Verifying the grant’s domains and investigating the publisher email can provide further insight into its legitimacy [3].

Monitoring how vendors access the organization’s environment is another important step in identifying suspicious activity or potential compromises [3]. The ability to monitor this activity may depend on the level of service and access to activity logs [3]. New solutions for SaaS security [1], such as Nudge Security, can offer visibility and risk insights for OAuth grants [2], making it easier to conduct reviews and revoke grants if necessary [2].

Regularly monitoring the security posture of OAuth vendors and revoking high-risk grants when necessary are also crucial practices [2]. By prioritizing OAuth security and regularly monitoring the security posture of vendors [3], organizations can ensure the overall security of their systems.


In conclusion, understanding and mitigating the security risks associated with OAuth grants is of utmost importance. By following best practices such as reviewing grants, conducting ongoing audits, assessing vendor trustworthiness, and monitoring vendor access [2] [3], organizations can protect their corporate environments from unauthorized access. Additionally, utilizing new SaaS security solutions can provide valuable insights and simplify the review and revocation process. It is essential for organizations to prioritize OAuth security and regularly monitor the security posture of their OAuth vendors to ensure the ongoing security of their systems.


[1] https://thehackernews.com/2023/08/how-to-investigate-oauth-grant-for.html
[2] https://www.redpacketsecurity.com/how-to-investigate-an-oauth-grant-for-suspicious-activity-or-overly-permissive-scopes/
[3] https://www.ihash.eu/2023/08/how-to-investigate-an-oauth-grant-for-suspicious-activity-or-overly-permissive-scopes/