FireWire DMA Attacks for Memory Acquisition

Firewire exploits that can be used to dump, or even alter a target machine's RAM.
http://www.hermann-uwe.de/blog/physical-memory-attacks-via-firewire-dma-part-1-overview-and-mitigation

The same method is used by Goldfish to acquire RAM.  For more information please see: Reliable Acquisition of RAM Dumps from Intel-Based Apple Mac Computers over FireWire