Can you say 'timeline cover photo'? (Photo: TMZ)

Dear oh dear, my oh my, look what TMZ managed to snatch: A shirtless picture of one Mark Zuckerberg, founder and CEO of Facebook. We would not have predicted such grizzly-like resplendence from the Zuck.

TMZ says the pic popped up on imgur, along with an explanation of how it was acquired:

The poster claims the pic was "accidentally posted" by Facebook Director of Engineering Andrew Bosworth ... who also appears in the pic on the far right.

The poster claims Bosworth deleted the pic "seconds later" ... but it was too late, someone captured the image and splashed it to the web.

Tech celebrities: Embarrassed by their friends' uploaded photos, just like us! Privacy settings are such a pill, huh?

Then again, that's nothing compared to this adorably awkward childhood photo, courtesy of his sister. Welcome to the wonderful world of frictionless sharing.

(h/t SFist)