Inadequate access controls in Microsoft 365 (M365) is a significant concern for security engineers as it can lead to unauthorized access to sensitive information and data breaches. Access controls are the measures put in place to restrict who can access specific data or systems. Inadequate access controls can occur when access controls are not properly configured, or when there is a lack of segregation of duties.
One reason for inadequate access controls in M365 is when access controls are not configured correctly. This can happen when access controls are too permissive, granting access to sensitive information and systems to users who do not need it, or too restrictive, denying access to users who need it to perform their job.
Another reason for inadequate access controls in M365 is when there is a lack of segregation of duties. This can happen when users have access to sensitive information or systems that they should not have access to, or when multiple users have the same level of access, increasing the risk of unauthorized access.
To prevent inadequate access controls in M365, security engineers should implement a number of security measures such as:
Implementing proper access controls that are appropriate for the level of sensitive information being protected, and regularly reviewing and updating them.
Implementing segregation of duties, ensuring that users only have access to the information and systems they need to do their job.
Conducting regular security awareness training for employees to educate them on the importance of access controls and the appropriate use of sensitive information.
Regularly monitoring M365 accounts and the network for suspicious activity, such as data transfers to unfamiliar locations or changes to account settings.
Regularly reviewing and updating the policies and procedures for managing M365 accounts and cloud services, including the process for revoking access for terminated employees and external parties.