One of the architects of this scheme wrote about it for the CIA's internal 'trade journal', which article has since been declassified. It adds an interesting additional dimension. This is very old-fashioned classic spycraft in some respects, but I'm surprised and impressed that the idea of a slow-burning software fuse was deployed so early.
One of the architects of this scheme wrote about it for the CIA's internal 'trade journal', which article has since been declassified. It adds an interesting additional dimension. This is very old-fashioned classic spycraft in some respects, but I'm surprised and impressed that the idea of a slow-burning software fuse was deployed so early.
https://www.cia.gov/static/887689795bd91ed08ca926a2f6278ee4/...