We're Off to See the Wizard (2003)

From publisher blurb:

This is a standard RPGA Network tournament for a team of four to six 4-level agents (though the serial’s challenges and XP rewards are tiered so that the serial can be played by up to six agents of levels 9, 14, or 19 as well).

The Agency has recently been the subject of a hacking attempt, although the firewall currently in place managed to stop the intruder. Normally, the Agency wouldn’t send a team to investigate such a routine attack, but the fact that the hacker almost managed to break through the firewall has aroused some concern. The agents are tasked with tracing the hacker and investigating the reasons for the attack.