english: But as soon as the threat is passed, the entrance is open again, and maybe there are situations in computer security where operating costs are low enough that we could just block access temporarily in response to an immediate threat, and then open it again, instead of trying to build a permanent firewall or fortress.
non_english: Ali čim pretnja prođe, ulaz je ponovo otvoren, i možda ima situacija u kompjuterskoj bezbednosti gde su operativni troškovi dovoljno niski da možemo da samo blokiramo pristup privremeno, kao odgovor na trenutnu pretnju, i zatim ga ponovo otvorimo, umesto pokušaja da izgradimo trajni zaštitni zid ili tvrđavu.