> with a SEM microscope Not so much anymore. Increasing data density and the two step nature of the technique make it much less applicable. There are newer t

> with a SEM microscope Not so much anymore. Increasing data density and the two step nature of the technique make it much less applicable. There are newer techniques but they're more expensive and much more sensitive to the physical state of the media being scanned. I mean this is probably why the CIA and NSA spend so much on tailored access operations and on zero day vulnerabilities instead. Not only is it easier to get the data in flight but it's much more likely to be timely for their purposes.