1.   Hackers have long tried to portray themselves as information-age Robin Hoods.

2.   How a hacker tried to fool a security expert.

3.   Shimomura said he expects other hackers to try to pick up where Mitnick left off.

4.   As hackers try new approaches, that list is continually growing, meaning administrators are always playing catch-up.

5.   Hackers generally try to access computer operating systems by exploiting holes in the applications the systems run, and most security products try to plug those holes.

6.   The Web site for the FBI also remained inaccessible late Thursday, a day after the agency said hackers tried unsuccessfully to compromise it.