I use Mailchimp to send out newsletters. It has a double opt in and I never add anyone to it. You can unsubscribe at any time and there is an unsubscribe link on every mailout.
This site has numerous security protection strategies in place in case of a hack.
All my computers are password protected and locked away when not in use. I do not use a phone or tablet to access the site or Mailchimp.
I do not hold any other data about the readers of this site.
If you are worried about any of this just email me on email@example.com