Brain (1986)
It's almost 25 years since the first PC computer virus left users looking at corrupted floppies, lost work and perplexing messages. In that time, the state of the art in automated malfeasance has progressed to the point that it's part of the armory of international geopolitics. Stuxnet, while still mysterious, left nobody in any doubt that viruses and worms can be used in the highest-stake game there is.

Along the way, hundreds of millions of infections have taken place, billions of dollars have been lost in productivity and broken systems, and the anti-malware industry has grown to become a significant player in the IT market. It's not over yet: perhaps it never will be, but the history of malware is a fascinating insight into the technology and culture of the digital world.

1. Brain (1986)
It sounded like science fiction, but it was all too real. Basit and Amjad Farooq Alvi, a pair of software programmers from Pakistan, became annoyed at people duplicating their products and created what was supposed to be a kill switch for illicit copies. But the design was flawed; the anti-copy software could duplicate itself — and did.

iPhone 4, the good and the bad, really things have been so uncertain with this iDevice. Recently I bought an iPhone 4, running iOS 4.0 Jailbroken and Unlocked.
To hard reset the phone, complete reset option was used from the settings menu. Misery, on reboot, the phone got stuck on the Apple logo and wouldn't go ahead. I connected to the PC, and kept it as is, since iTunes said you need to restore it. Someone pressed the restore button there while I was away. Voila! It got updated to the latest brand new iOS 4.2.1, how unfortunate. Then was the time for me to look up iPhone news about Jailbreak and Unlock for iOS 4.2.1 and BaseBand 3.10.01.

Tethered Jailbreak for iOS 4.2.1

The iPhone dev blog introduced me to the 'Tethered' Jailbreak, since my iPhone wasn't even 'hacktivated', I had to go for any Jailbreak, and Tethered was fine for then. I downloaded the Jailbreak tool from iPhoneDownloadBlog Downloads section, and also the large iOS firmware files, really bulky, Windows Mobile OS fits in half the size.

We will use a Linux distro called the BackTrack, which features various Network Audit tools.

You can crack only WEP protected networks and you need lot of patience. More and more people have started to use WPA technology to protect their networks and it comes by default from the router manufacturers nowadays.

You need a PC with a router capable of sniffing packets, a BackTrack OS dvd and few command line (Terminal) basics.

Downgrade to 4.0.1 to be able to jailbreak using "jailbreakme.com"

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