I think you have the winning Logo. However I do not love the font style for the - iLock, Smart, Simple, Secure portion you've used in the Logo I currently have ranked #1.
In addition, most the logos you submitted last said, "iLocks" instead of "iLock".
Please give some more edgy, secure, modern, FBI / James Bond/ Spy like font types a try. I don't know specifics font styles names or I would provide them. You know what looks good... competition is almost done. Let's make you the winner. Get me something different for font options.
Thanks