Warning of code injection during update WP 6.0

I tried to update to the nightly WP 6.0 version May 15 2022. While the process worked in the background I was warned on the the WP page itself that the downloaded content is not properly signed.
Then my Acronis security app popped up a warning that there was a possible code injection with malicious content in 168 files.
I am relatively new to WP – how would I handle this situation??
Thank you for any advice.

• This topic was modified 2 years, 5 months ago by juergenmauer0221.