Hi @tsso0120,
I understand your concern about the auto-updates.
It would be good to note that for any software or plugin to stay valuable and secure, constant updates need to be made. In our case, we actively seek out possible vulnerabilities in our extensions (especially payment-related extensions) and release fixes for them ASAP to ensure that merchants are not affected by them.
I understand that you would like to be notified of these updates rather than it being auto-updated hence your server setup to block all updates. However, these auto-updates help keep the site of merchants secure including those who may miss the update notifications or emails.
I hope this helps clarify things. ??