Exchange Online mailbox with Full Access permission assigned

This condition indicates a potential exposure or misconfiguration, which can increase the risk of unauthorized access and data manipulation. The presence of full access permissions can facilitate attacker activity, such as accessing compromised mailboxes.

Attackers can use the granted permissions to access the compromised mailbox without being detected, potentially facilitating data exposure or mail manipulation. This requires the attacker to already have access to the compromised account's credentials.

Cayosoft Guardian continuously monitors permissions across Exchange Online mailboxes and flags issues when full access permissions are found, allowing administrators to review and address the potential exposure. This provides visibility into unauthorized access attempts.

Cayosoft Guardian helps reduce the risk by alerting administrators to review and remove unnecessary permissions, limiting the blast radius of potential exposure and helping teams maintain better control over mailbox access. This supports investigation and response efforts.