To enhance system security and mitigate risks from unattended access, AAT will deploy an Auto Logout feature in COSYS+, effective from 8 Jul 2026. The system will automatically log out after 20 minutes of inactivity, and user can simply re‑login to continue using the system.
Notes:
- Page navigation alone is not considered user activity.
- When using multiple browser tabs, only the tab(s) inactive for over 20 minutes will be logged out. Active tabs will remain logged in.
For technical support or enquiries, please contact: IT Helpdesk (24 hours): (852) 2949-7712 or email to [email protected].
We appreciate your cooperation and support as we continue to strengthen our cybersecurity measures.

