iBook and iBook (FireWire) computers do not have a security slot.
To secure an iBook computer, in a classroom, for example:
1. Run a security cable through the iBook computer's handle. Almost any security cable system that works with an iMac computer will work with an iBook computer.
2. Secure the security cable to a fixed object or surface.
Note: The iBook (Dual USB), iBook (Late 2001), and iBook (14.1 LCD) computers all have a security slot.