Is there any computer system that is impossible to hack?

[NNN0LHI]

http://www.khaleejtimes.ae/DisplayArticle09.asp?xfile=data/theuae/2011/July/theuae_July212.xml§ion=theuae

Metro has firewall against hacking Shafaat Ahmed

8 July 2011, 10:37 PM

The operation system of Dubai Metro is the most secure in the world and impossible to hack, a senior metro official told Khaleej Times.

The world’s largest driverless railway, run on a completely automated system and an independent network, has an incredible chain of back-up and security even in the most unlikely cases of sabotage, he added.

[htuttle]

1. No

That answer will be valid far into the future as well.

[buddysmellgood]

2. We will see quantum computing in our lifetime

[htuttle]

4. One modification to that pronouncement

If the computer is completely inaccessible by anyone, like locked in a lead safe and put on the moon, it would not be hackable. It would also be useless.

[Edweird]

3. I guess we'll find out.

[Fumesucker]

5. An Abacus?

:shrug:

:hi:

[rzemanfl]

10. You thought of that 3 minutes before me. n/t

[hootinholler]

14. Nice try

An abacus is not a computer in the technically pure sense, neither is an adding machine or calculator.

Colloquially, it's a clever answer :D

-Hoot

[anarch]

16. you can still hack an abacus

into pieces with a hatchet

[Fumesucker]

19. That depends on what the Abacus is made of..

Hardened and tempered tool steel would be difficult if you made it thick enough.

[anarch]

20. yeah, but that also depends what the axe is made of

:evilgrin:

[Fumesucker]

21. Imagine an Abacus made from battleship gun barrels..

:evilgrin:

:hi:

[anarch]

22. LOL...imagine an axe made of water

given enough time....

:D

[Drale]

6. Only computer that is impossible to hack is a computer that is not hooked up to the network.

[Ohio Joe]

8. Incorrect

All you need is access to the machine.

[htuttle]

9. That's still hackable if you're standing in front of it

...or if you can infect, for example, a USB key drive that is inserted into the machine and retrieved. The list goes on. It would be pretty hard to do, though.

[Edweird]

15. That's actually the easiest. Boot from cd/dvd/usb. Open case and install new boot drive.

Open case remove hard drive and hack/crack/explore at will in the comfort of your own home home.

[Ohio Joe]

7. No

Some are more difficult then others but there is no such thing as un-hackable.

[hootinholler]

11. ROFLMAO!!!! Yes there is one that can't be hacked.

It's turned off, unplugged and useless except perhaps as a doorstop.

-Hoot

[Taverner]

12. In theory, at least, quantum computing might give us unhackable computers

Being as the qubit is more complex than the byte, and being as the kind of shortcuts in computing a quantum computer can do could render a system unhackable - but that computer doesn't exist yet, and we have no idea how to build it.

Some Neruologists have suggested that the human brain is a "wetware" quantum computer - but that's about as close as we have right now

[tridim]

13. Brains can definitely be hacked.

Evidence, the average Faux Newz viewer.

[Taverner]

17. LOL

[Tesha]

18. Yes.

Computer systems can be mathematically proven to be
"correct" but the investment normally isn't worth it.

Also, systems that aren't connected to a public
network are essentially unhackable without physical
access.

It's also worth noting that some computer systems,
even if hackable, are far less hackable than other
computer systems.

Tesha

[HopeHoops]

23. Yes - one that's completely without power.

[nadinbrzezinski]

24. Yes, but one that is not that useful

one that is completely isolated from the web... and any other input of data...

you are on the web... you are hackable.

[hobbit709]

25. If it connects to the outside world, it's vulnerable.

Given enough time and processing power ANY computer can be hacked.