Hey , Mike . You've been surfing the Net for quite a while . What on earth are you searching for ?   It's something relative hackers . I often hear people talking about them , but I don't know much about them .   Well , roughly speaking , a hacker is a computer buff .   You mean a guy using enthusiastic and knowledgeable about the computer ?   You can say that .   But why are people always having such a negative attitude towards them ?   They must have mixed hackers with crackers . 