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HACKING
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Who is hacker Hack Hacker Cracker Cut with repeated irregular blows
Examine something very minutely Hacker The person who hacks Cracker System intruder/destroyer
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History of hacking Telephone hacking Computer virus Network hacking
Use telephone freely It’s called phreaking Computer virus Destroy many computers Network hacking Hack the important server remotely and destroy/modify/disclose the information
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Types of hacking Normal data transfer Interruption Interception
Modification Fabrication
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Why do hackers hack? Just for fun Show off Hack other systems secretly
Notify many people their thought Steal important information Destroy enemy’s computer network during the war
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Why can’t Korean kid hack?
Almost all Korean kids don’t know English well Almost all hacking program manuals are written in English However, many hacking program manuals are being translated
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How can be a real hacker? Study C/C++/assembly language
Study computer architecture Study operating system Study computer network Examine the hacking tools for a month Think the problem of the computer
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How can protect the system?
Use switch hub Setup firewall Ex) ipchains Setup IDS Ex) snort Check unintentional changes Ex) tripwire
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How to translate the hackers’ language
1 -> i or l 3 -> e 4 -> a 7 -> t 9 -> g 0 -> o $ -> s | -> i or l |\| -> n |\/| -> m s -> z z -> s f -> ph ph -> f x -> ck ck -> x
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How to translate the hackers’ language
Ex) 1 d1d n0t h4ck th1s p4g3, 1t w4s l1k3 th1s wh3n 1 h4ck3d 1n I did not hack this page, it was like this when I hacked in
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THANK YOU
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