Umbrel Logs Review

I am looking for an explanation of what is going on in the logs. Looking at my Umbrel Logs, under the subtitle Startup service logs, I see the following:

Jul 21 18:10:42 passwd[random numbers]: pam_unix(passwd:chnotmypw): password changed for umbrel

I have changed the pw details, but hopefully, you get the point. What am I seeing here?