How do you reset the anti theft system on a 1998 Ford Taurus?

To reset the anti-theft system on a 1998 Ford Taurus, first ensure that the vehicle is in the "Off" position. Then, insert the key into the ignition and turn it to the "On" position without starting the engine. Leave it in this position for about 10 minutes until the security light turns off. Finally, turn the key back to the "Off" position and then attempt to start the vehicle.