SCO Group has upped the ante in an amendment to its suit against IBM, seeking more than $3 billion in damages for alleged copying of proprietary Unix intellectual property into Linux.

In March, SCO Group surprised the world with a lawsuit seeking more than $1 billion against IBM in the case. An amended complaint filed Monday in U.S. District Court in Utah added more claims against IBM, tripled damages to at least $3 billion, sought an injunction prohibiting IBM from selling Unix and detailed some accusations of technology moved to Linux.

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