[atgm]

Never seen that before...

I'd think something like a white top hat on black or vice versa would be a simple silhouette that would be descriptive, if there isn't anything.

[shadowpwner]

But that wouldn't be an injoke, would it? ;)

I've seen this around, but I assumed it was more security-hacking than startup-hacking.

Edit: "The basic difference is this: hackers build things, crackers break them." from http://www.catb.org/~esr/faqs/hacker-howto.html#what_is

I stand corrected.

[roxstar]

Well that kind of portrays a different kind of hacker (the hats) than what the emblem I linked is for.

[anujkk]

Isn't that something like red hat logo?