Port42 is a cryptography company that needed branding and collateral design (business cards and letterheads). The owner wanted the logo to be technology related, and generic enough that he could later expand to providing other online services without rebranding.

First sketches (7a was my favorite)

The client picked a few sketches to see in vector format.

the words 'port 42' in a thin font with hollow circles intersecting the lines
While this does evoke technology, it's very hard to read and does not imply 'strength'.
a letter 'p' created from dots and lines and the word 'port42' below
a letter 'p' enclosed in a box
This version attempted to evoke a cat5 port in the 'P'.

And the final version.

Once he picked his final logo, it was time to design some collateral and create a branding guide.