Is it okay to use a refurbished laptop to make a cold wallet as long as I remove the wireless card? Can an encrypted wallet with over 30 characters(random, numbers, LC letters, Capital letters, and special characters) still easily be hacked without using a keylogger to obtain the password?
You're safe with that setup, since it will stay offline, you don't have to worry about getting hacked but do remember to make several backups at various offline usbs, coz refurbished laptops hdds are pretty used and they usually die very fast.