No, Apple did not include Bitcoin mining software in OS X!!

from the British Library.

Bitcoin Hoax Dupes Apple Users Into Destroying Their Macs
[Via Cult of Mac]

  Looking to capitalize on the surge of Bitcoin’s popularity, some mischievous pranksters from 4chan’s random image board are trying to convince Mac users to trash their computers.

The hoax claims that Apple has included Bitcoin mining software on all Macs since 2009, but you just need to enter a simple terminal command to unlock it. Of course, there is no secret Bitcoin mining app hidden in OS X, so what does the terminal command sudo rm -rf/* in the picture actually do? Oh, it just basically reformats your hard drive.

[More]

OM. I really hope no one actually did this. Oh wait, some already did. Trusting fools.

Looks like some Xbox owners bricked their machines also. Looks like a learning moment.

The hoax claims that Apple has included Bitcoin mining software on all Macs since 2009, but you just need to enter a simple terminal command to unlock it. Of course, there is no secret Bitcoin mining app hidden in OS X, so what does the terminal command sudo rm -rf/* in the picture actually do? Oh, it just basically reformats your hard drive.
Read more at http://www.cultofmac.com/257976/bitcoin-hoax-dupes-apple-users-destroying-macs/#KPw441pyeGt4TiXo.99