1. HACKING

2. Who is hacker Hack Hacker Cracker Cut with repeated irregular blows
Examine something very minutely
Hacker
The person who hacks
Cracker
System intruder/destroyer

3. 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

4. Types of hacking Normal data transfer Interruption Interception
Modification
Fabrication

5. 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

6. 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

7. 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

8. How can protect the system?
Use switch hub
Setup firewall
Ex) ipchains
Setup IDS
Ex) snort
Check unintentional changes
Ex) tripwire

9. 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

10. 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

11. THANK YOU