1.   But no one doubts that the number of script kiddies is growing, to the annoyance of experienced hackers and security experts alike.

2.   For an experienced hacker, breaking into voice-mail systems is often an easy affair.

3.   University computer systems also attract experienced hackers.

4.   Experienced hackers have already found ways to pirate or scramble valuable data from banks, hospitals, and other types or orgnanizations.