Coming across this topic, I thought I would try to reply to the original topic and add attempt to a sort of timeline:
2074: The Beginning : first cases of infection and headcases action, Fastjack and Miles Lanier comes out as "head cases" victim, and Fastjack disappear (Source: Storm Front). As this stage CFD is more of a rumor theory on the matrix than anything else.
2075: Discreet recognition: top management of most mega (and nations) are made aware and react (discreetly) by removing their nanoproduct from the market and start investigating in cure (or react bizarrely, like Sioux Nation openings their door to "head cases"), (Source: Stolen Souls). No public or official word, but my personal interpretation is that some rumors regarding "issues with nanoware" spreads among the public
2076 : Shit hit the fan: Boston Lockdown happens, Shadow world is aware of the strong ties with CFD, but public does not. (Source: Boston Lockdown).
2077: Monads comes out, claiming responsability (but who knows for sure ?) for CFD, but stating publicly that they have nothing to do with Boston mess. In the shadows, some "head case" have finally integrated with their new "personality" (or come to some arrangement), like Riser or Plan 9. A technomancer based solution, using a complex forms named Corollis, allowed to "cure" some CFD case - only if the IA is a Xenosapience, that can be convinced to "move away".(Source: Chrome Flesh). At this point, I'm not sure what the public knows, but my guess is that with the outing of the Monads, CFD rumors are stronger and stronger, and even wageslaves are becoming aware of this. Next step will probably be some mega paying the price, with an "official" story (and punishment) being released in 2078.