What's Tier Zero?

Sites that are you consider safe that you've used before that you've vetted and don't really pose a risk. You should always check every site for a technical risk. Then looking at it from a topical perspective, would somebody be interested in why you're on that site? So everything tier zero one and two is passive collection three, four and I'll stay away from five,. But three and four is where you really get into the more aggressive type of collection methods. More your humid and ossent combination.