This SecurityPatch.prc software will address a password security issue that was discovered on Palm Zire 71 and Tungsten T2 handhelds. The issue relates to a condition that may compromise the password lock out of the device.
If you use the password protection or the Auto Lock Handheld security feature, you must download and install this patch.
Don't leave this for later, security is importat. Have a look on this article on security for more information too.