Protect "Graphs" with password

Hi.

I have a MK 2.9.27 and configured Graphs so i can see them throuth the web interface http://[router IP]/graphs/

Is there any way to password protect this page so i’m the only one to check the graphics??

First of all you have to upgrade to 2.9.40, you have not to pay any additional fee for that, but get opportunity to use the latest version with included updates.
Graphs do not have ‘password protect’ feature, you have to use external SNMP agent with HTTP server enabled, that provides the particular function (e.g. Apache and htaccess for password protect).