In security, we speak about different strategies of protection. Mainly, there are three to consider. First kind, usually called shell protection corresponds to the act of preventing the intrusion before the access. For instance, a door, fence, password on a website or silver galvanization of the utensils.
That's usually very powerful and easy to maintain. Occasionally, there's a breach and then, we have problems, unless there's also the other kind of security implemented. Here, we're talking about smoke dispensers, mazes, ambulating patrols, honey pots, fake repos etc.
What would be a good term for that? (Extra great if it's formal'ish.)
The one I've been using is impregnation protection but I'm not sure if it makes sense, let alone is correct linguistically, let aloner comprehensible to regular people.
(The third is deterrent protection and not relevant to this question.)