Former pentester, I used to play a lot with Microsoft Active Directory infrastructures, both on defensive and offensive aspects at Synacktiv, a french offensive security company. I am now in the Reverse Engineering team within my company, focusing on Windows and hardware topics.
SynacktivWhat is your job title? –
Direct Memory Access technology allows peripherals to access RAM without relying on CPU. DMA increases performances but bring up security issues. An IOMMU was incorporated to address these concerns.