Yes. If you are a System Manager, you can unpair all devices across the organisation. This can be useful in the event of a security issue, but we recommend checking with the wider organisation before proceeding.
To unpair all devices, go to Actions > Configure > Site Settings > Devices, then select Unpair All and confirm the action. You'll also see a toggle at the top to temporarily prevent access.
If you have any concerns, please contact the Oak Support Team at support@oak.com.