What happened
Google Gemini privacy controls were bypassed using calendar invites to gain unauthorized access to private meeting details. Malicious actors could exploit invite links to retrieve sensitive metadata, including participant names, emails, and meeting times. The technique leverages misconfigurations in invite handling, allowing attackers to enumerate events without legitimate access. This flaw does not require full account compromise but can expose sensitive operational information across affected organizations.
Who is affected
Organizations and individuals using Google Gemini for internal meetings or confidential communications are at risk of indirect exposure to sensitive scheduling data.
Why CISOs should care
Exposure of private meeting information can facilitate targeted phishing, reconnaissance, or insider threats, potentially leading to broader organizational compromise.
3 practical actions
- Audit calendar sharing settings: Review and enforce strict access controls for internal and external invites.
- Monitor for suspicious activity: Track unusual calendar access or enumeration attempts.
- Educate employees: Train staff to recognize and report anomalous invite links or unexpected scheduling events.