A hacker known by the pen name Guccifer has broken into the servers of John Doerr, a venture capitalist known for early investments in companies such as Amazon and Google.

According to the Smoking Gun website the hacker sent the online publication several emails from Doerr's AOL email account as well as a screenshot of Doerr's email address book, including Steve Jobs' biographer Walter Isaacson. A spokesman for Doerr, the face of the high-profile venture-capital firm Kleiner Perkins Caufield & Byers, did not immediately respond to a request for comment.

Guccifer has also leaked the emails of several Bush family members, including former President George W. Bush. We would not have thought it too difficult to guess that password. It was probably something like Prez, or 1234. However the hacker has also accessed emails of former secretary of state Colin Powell and former secretary of state Hillary Clinton, who are a bit cleverer. [DieMonicaDieYouSlut? Ed]