In the English idiom, there is this saying - be like/safe as Fort Knox. When someone used this idiom, it means that the subject matter, usually a building, is strongly built with many locks, strong doors, etc., so that it is very difficult for thieves to enter. In reality, Fort Knox is a military base in the state of Kentucky in the United States where most of the US's store of gold are kept. The layout of Fort Knox, as extracted from Google, is as such;
Why are we discussing about Fort Knox?
Because there has been talks currently by researchers in several countries of building future software like Fort Knox, effectively, penetrating the software and network is virtually impossible.
Fort Knox was created and built to prevent physical entry. It is not only to make unauthorised entry difficult but also exiting if the intruder did managed to breach and enter the premise. Thus logically, if future software are built to 'prevents' attacks or unauthorised intrusion from outside, it is also making it difficult for those 'inside' to liaise and coordinate legitimately with those on the 'outside'.
In the world of cyberspace, entry and exiting the network is unlike a human being 'going in and out' of a premise. Virus and malware are invisible to the naked eye and moves in nanoseconds or less and entry and exit can be anywhere in various modes and forms.
In the current scenario and the future, more and more organisations will be linked via the internet and more and more devices would be manufactured to link up to the internet - all with the sole objective of making our lives easier and convenience at our fingertips. Already at the present moment, with just the tap of a few fingers, we can do a lot of things without the need to be physically present at any time and place at our convenience. All these 3rd party devices are NOT built like Fort Knox. These 3rd party devices are built to 'tap into' and support the software that was built like Fort Knox.
If these 3rd party devices are not built like 'Fort Knox', hackers can still 'insert/plant' malicious viruses into it. And these 3rd party devices are linked to the Fort Knox like software perpetually. These malicious viruses just need 1 milli or nano second of opening of the 'doors' of the Fort Knox like software and they are in.
When blockchain was the rage months ago, it was touted as 'hack proof' as its core technology virtually make it impossible for any hacker to hack into the network. The successful hacking of 2 crypto exchanges late last year and early this year, however, dispel this notion.
This proposal to built future software like Fort Knox type is unlikely nor would it deter nor minimise the risks from cyber attacks. Just like the common cold that inflicts human easily, there is no cure for it.