How do I know if my home router has been compromised?

1. Check the user manual for the 'default' username and password of your router.
2. At least once a month, check for any unauthorized physical access to your network.
3. Change your router's passwords and usernames from their default values.
4. Regularly check for any unauthorized logins.
5. Update the firmware regularly.
6. Utilize the Encrypted Logging and Centralized Logging capabilities.
7. Deploy packet inspection based real-time security.