Summary Box: Anonymous vandalizes site

ANOTHER ATTACK: The website of an international prison contractor, GEO Group Inc., was defaced by hackers who replaced the company’s home page with a hip-hop homage devoted to former death row inmate Mumia Abu Jamal.

BEHIND IT: Hackers allied to the loose-knit Anonymous movement claimed responsibility.

ABOUT THE COMPANY: GEO manages some 60 custodial facilities in Europe, North America, Australia and South Africa. The company says no information on its staff or operations was accessed.