> You need to connect to your backup media very frequently. But, you don't want any ransomware that may find you to also find your backup media; that would defeat the purpose of the backups.
If I was hit by ransomware and needed to restore from backup, I'd make damn sure to mount that backup drive readonly.
I think your parent is saying that if you are connecting to backup media frequently to make backups (in write mode, of course), then the ransomware has an opportunity to silently encrypt that too before you know you're infected, thus rendering your backups useles.
If I was hit by ransomware and needed to restore from backup, I'd make damn sure to mount that backup drive readonly.