2007-09-09 01:13:23
Re:How do you explain this to the average joe?
(Score:5, Insightful)
by garompeta (1068578) on Saturday September 08, @01:24PM (#20521693)
You are underestimating how valuable and powerful distributed computing is, my friend.
It has been used as a distributed MD5 crackers, collisions in SHA-1, and search for extraterrestrial life... (eer... yeah)
Having a gigantic botnet of at least 100,000 computers to unimaginable millions of infected computers that we'll probably ignoring or we are unable to detect, this gives a tremendous asset to a malicious hacker.
It is a very fat milking cow:
1) Crack passwords that it is not considered crackeable in a reasonable amount of time
2) Botnets to attack whoever he wants (at a reasonable price or for a reasonable cause)
3) Millions of Passwords, logins accounts, paypal, amazon, credit card, identity, whatever, stolen.
4) Millions of proxies to hop on and chain hiding the source of a real meticulous attack. 5) Millions of illegal distributed server to host for illegal materials (eg: virii, worms, child pornography)
Etc...
I told my oldest son about this botnet yesterday, mentioning that with between 2 million and 20 million CPU's working at any one time, and even that larger figure likely representing only a fraction of the botnet's total capacity, it collectively represented the most powerful supercomputer ever built... and it was effectively under the control of a small group of people with criminal intent - the author, or authors, of the worm. My son responded to me with a great deal of scepticism, first saying that none of these security experts which have made this analysis have any way to estimate what sort of computing power military organizations might have, so saying that it represented the most powerful supercomputer ever was actually a completely meaningless claim, and also, he proclaimed that the story was most probably just hype and over exaggerated. He said that the claim of the most powerful supercomputer ever being controlled by criminals was simply too much to be believable, like the headlines one might see
on the front page of the Weekly World News tabloid. He also said that it was ludicrous to see how sending people "penis extension ads" (which is about all he figures a botnet can do) can actually seriously harm anything or anyone.
So this got me to wondering... how much of this actually _is_ something that is of any real concern, and if it really is, how could it be explained to people in such a way that it's not going to sound like some claim from a conspiracy theorist?
You could also introduce him to the theory behind Bittorrent [wikipedia.org], which is a good demonstration of how many computers each doing a small task, given modest bandwidth, can add up to massive distribution and publication power in short order.
Now, what if some distributed network decided to siphon a gig of illegal or embarrassing materials onto a compromised target machine. Perhaps a politician that is voting the wrong way?
Then ask him, not if the entire banking industry is safe, but if an individual's information (SHA hash collision or private key, but that's not "average Joe" speak) could be subject to a distributed brute force attack [wikipedia.org].
With the growing power of computers making tiny pieces of malware harder and harder to notice (that 1% of processor time is more and more powerful), and malware being able to literally hide files from the user until such time that it chooses to reveal them, it seems like it's only a matter of time before someone with a large enough botnet, and enough imagination, could start attacking individuals and/or siphoning off their money. How you do this is not something I care to discuss, but the black hats (both the actual criminals and the security experts, as an exercise) already have ideas and are working on it. That's why you'll see them periodically calling for stronger encryption (more bits in the keys). If there was no possible threat, they wouldn't be creating and suggesting longer keys. Rootkits [microsoft.com] would not be a concern, if files hidden from the user were always benign (most are).
But all it takes is the wrong person to have the right idea, a breakthrough that changes the assumptions, especially in cryptography. Show him the movie "Sneakers [imdb.com]" if you want to fuel some imagination regarding that. It's crap, but it's also fun and sizes the problem for the average Joe. Assuming that only ethical people work in cryptography is somewhat naive. Assuming that unethical people are not watching the progress of ethical individuals in the field is stupid.
There's nothing to say such solutions and attacks haven't occurred already, but it seems, as your son suggests, unlikely. You can bet if a criminal has figured it out, a little bit of money siphoned off here and there would be almost impossible to detect, especially in an environment where people are unwilling to believe it's even possible. Believe me, if the idea has hit Hollywood [imdb.com], it's old hat. That's exactly how such a criminal would proceed if they had found a way to leverage such distributed computing applications. They would target a distributed network of accounts, one by one, in a way that looked like banking errors (which are numerous and automatically corrected by the bank) and slowly siphon money from the banking industry itself, through compromised individual accounts. No individual would suffer, because of correction processes in the banks, the world's capital reserves would.
Then ask what that money could buy in terms of influence, weapons, elections?
Any compromised machine is a liability to its user. Botnets are a menace to society, and we're lucky all they're (hopefully) being used for is "penis enlargement" ads and DDoS attacks. That's barely scraping the surface of their potential.
If he wants to go on believing that his safety and security are a given, without any effort on his own part, there's little you can do, but anyone with any imagination, who is not in flat out denial, can demonstrate that distributed computing applications have a great deal of power, and that basic security is everyone's concern. It is definitely not good that these networks exist and are in the hands of people bent on harm.