Newbie to OpenEMM question - jdbc.username, jdbc.password in

[opiokane]

I just installed OpenEMM.
I found
jdbc.username =agnitas, jdbc.password=openemm in emm.properties.
Also I found cmsdb.username=agnitas cmsdb.password=openemm in cms.properties

Is it safe to leave these as they are? Or should I change them to my own?

TIA