Less than three months later, Force had rewritten Bowen's program into the far more powerful DEFCON, which became the jewel in the crown of the Australian hackers' reputation. With DEFCON, a hacker could automatically scan fifteen or twenty network addresses simultaneously. He could command the computer to map out pieces of the Belgian, British and Greek X.25 communications networks, looking for computers hanging off the networks like buds at the tips of tree branches. Conceptually, the difference was a little like using a basic PC, which can only run one program at a time, as opposed to operating a more sophisticated one where you can open many windows with different programs running all at once. Even though you might only be working in one window, say, writing a letter, the computer might be doing calculations in a spreadsheet in another window in the background. You can swap between different functions, which are all running in the background simultaneously. While DEFCON was busy scanning, Force could do other things, such as talk on Altos. He continued improving DEFCON, writing up to four more versions of the program. Before long, DEFCON didn't just scan twenty different connections at one time; it also automatically tried to break into all the computers it found through those connections. Though the program only tried basic default passwords, it had a fair degree of success, since it could attack so many network addresses at once. Further, new sites and mini-networks were being added so quickly that security often fell by the wayside in the rush to join in. Since the addresses were unpublished, companies often felt this obscurity offered enough protection. DEFCON produced lists of thousands of computer sites to raid. Force would leave it scanning from a hacked Prime computer, and a day or two later he would have an output file with 6000 addresses on different networks. He perused the list and selected sites which caught his attention. If his program had discovered an interesting address, he would travel over the X.25 network to the site and then try to break into the computer at that address. Alternatively, DEFCON might have already successfully penetrated the machine using a default password, in which case the address, account name and password would all be waiting for Force in the log file. He could just walk right in. Everyone on Altos wanted DEFCON, but Force refused to hand over the program. No way was he going to have other hackers tearing up virgin networks. Not even Erik Bloodaxe, one of the leaders of the most prestigious American hacking group, Legion of Doom (LOD), got DEFCON when he asked for it. Erik took his handle from the name of a Viking king who ruled over the area now known as York, England. Although Erik was on friendly terms with the Australian hackers, Force remained adamant. He would not let the jewel out of his hands.