The DaMAgeCard attack highlights vulnerabilities in memory access through SD card readers, particularly in devices that use protocols like PCIe and NVMe. User comments discuss technical aspects of external DMA attacks, the evolution of card readers, and the importance of IOMMU as a security measure against such attacks. There's an emerging concern over the security implications of these technologies, especially for high-speed photography devices that produce large amounts of data quickly. Discussions also touch upon the historical context of DMA attacks, signaling a demand for better implementation of security standards in consumer hardware, and suggest that manufacturers should prioritize features like SD Express support. The overall discourse showcases a blend of technical insights and the pressing relevance of device security.