Suggestion for a new Logo

[Ben]

Ok, at first I wasn't massively keen on the new "Ki" name, but I've been 
thinking about it all day, trying to design a new logo.

"Ki", Japanese for Fortress. Very close to "energy" in martial arts, in 
the sense that you throw "Qi bolts".

Security is about keeping invaders out, fighting them off, blocking 
their access...

What can we do with those letters?

Here's my best effort :-) 

All the best,

Ben