Citadel Technology Inc. said its WinShield and NetOff data security software has been chosen by Washington Mutual Inc., with an initial order exceeding $1 million.

Citadel won a "beauty contest" judged by IBM Global Services Inc., Washington Mutual's technology supplier.

The systems allow Washington Mutual to "lock down" its desktop computers, secure unattended workstations, and control access to applications and directories.

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