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.
Men så snart faren er ovre åbner indgangen igen, og måske er der situationer indenfor computersikkerhed hvis driftsomkostninger er lave nok hvor vi bare kan blokere adgangen midlertidigt i respons til en trussel og så åbne igen, i stedet for at bygge en permanent brandmur eller en fæstning.