A number of these features don’t make any sense, including HTTPS and IMAPS/POPS proxies. Most users don’t have the sophistication to understand what the network IDS is telling them, so what’s the point? The same goes for phishing filters, which are in Firefox 2 and IE7 by default, and probably better, since both are dynamically updated from widely used. In short, this appears to be mostly hype, with, potentially, one or two vaguely useful features that would never be convincing enough.”]
Source: https://gizmodo.com/yoggie-gatekeeper-protects-your-laptop-on-the-go-244926