Profile for Maintenance people
Finance: Typically almost nothing - but sometimes more.
Time and Effort: Minimal - as a side effect of normal duties access is granted and exploited.
Group Size: Typically single individuals.
Other resources: Keys, authorized access, off-hours access.
Bribes or similar temptations are used on maintenance people. Sometimes people try to get hired for this function in order to gain access which they exploit. A tendency to minimal technical expertise.