Anyone knowledgeable about selling on amazon?

I am going to start selling on amazon using FBA after having my store shut down a few years ago and I currently have a few things set up to stay private and wanted to know if it was enough. I have a new LLC being processed, a business address and a business bank account. The sign-up will be done by a friend in another state and I will be added as a virtual assistant so I can manage the store from my home. I will be looking for a MacBook also to use solely for managing the business but I'm having trouble with the wifi. Ive logged in to my old seller account using my current wifi before so with my new laptop, would i need some type of VPN or use a custom browser like a version of firefox with a few extensions to keep privacy secured?