Risks of using public computers include having data or accounts compromised, exposure to viruses, and potential identity theft. To protect personal information, you can:

1. Change passwords regularly.
2. Log out of accounts after each use.
3. Never save your password on a public computer.
4. Use private browsers and avoid auto fills.
5. Turn off Bluetooth when not in use.
6. Be wary of suspicious emails.
7. Never use public Wi-Fi.
8. Be mindful of new applications or downloads.