Only the owner of that beacon can set it as a destination (src). It's intended for private destinations, like your own home. You can link two private destinations for complete privacy, or link from your private beacon at home to a public beacon somewhere else while making sure nobody can sneak into your base through your beacon.
Protected could mean any of several things.
Only the owner of that beacon can set it as a destination (src). It's intended for private destinations, like your own home. You can link two private destinations for complete privacy, or link from your private beacon at home to a public beacon somewhere else while making sure nobody can sneak into your base through your beacon.