[weewx-development] Raspberry password

[Hector Valenzuela]

Hi i'm running weewx in a raspberry pi 3 which is connected via ssh with 
the default password "raspberry" but one day the raspberry no longer 
accepted the password and it was impossible to connect via ssh. I backed up 
the weewx database and reinstalled weewx and raspbian, it worked fine for 
about six months but today for the second time the same problem happens to 
me, what can it be?
Sorry for my english, greetings from Mexico