Hello everyone! I still really new here and also beginner in mining and using in crypto currency in general. I've read some articles that it's better to secure your crypto wallet very well and it suggests to buy a vpn. I asked some of my friends who's little bit into this, they suggested me nordvpn. Although I'd like to get some opinion from people who know this field well. Also, is there any other benefit of having vpn in this field?
If your question is about funds security, then having a VPN or not is irrelevant and you should better chose a hardware wallet, such as Trezor or Ledger.
(You should avoid savings a few bucks on a solution that's maybe a bit less expensive, because this is very sensitive and those 2 companies are very trusted and serious)
Bitcoin wallets act as nodes and relay transactions that are unknown to their own list of peers, this is how it is broadcast on the network.
For your wallet to be on this or that network, it doesn't change much, as it is P2P.
In bitcoin, there are only valid or invalid transactions.
There is no big or small, no legal or illegal, no borders, etc ...