EBay Inc. has been penetrated by a hacker who managed to take down the company's home page and gain extensive access to other content, Forbes Digital Tool reported. The report said the popular Internet auction site was hacked last Saturday by someone who continues to have access to the site and the ability to change auction prices, post fake ads, divert traffic to other sites or take down the entire network. Forbes said the hacker, operating under the name MagicFX, revealed himself to be a 22-year-old college student. EBay would say only that it is "working closely with law enforcement" on the matter and that no credit card information was compromised. Shares of Palo Alto-based EBay closed down $1 at $159.75 on Nasdaq.