More from the marketing brochure:
> The only requirement outside of the client-side embedder library is the installation of a video fingerprint generator appliance in close time proximity to the video encoder. Operating independently of the encoder on a copy of the signal, signatures are calculated and other frame analyses are performed to enable precise triggering and recovery of the identifying symbols.
they start by uploading new firmware to the decoder and changing it to only accept signed images (I bet they already do this, up to date firmware typically runs on a slow carousel on each satellite transponder)
Once you have your code in control on all your valid boxes you can switch the crypto - either the hacked box falls off the crypto and stops working or it does your watermarking - you can send EMMs to all the boxes telling them to identify themselves - blink out their box id in a random pixel somewhere (or do the binary thing mentioned above) - once you have that you send them an EMM to shut off their crypto
1. They got hacked, didn't respond.
2. Someone used the (published) hack to make cheaper decoder boxes. Management decided to sell these hacked, rather than the genuine ones. Or to put it another way, they screwed up logistics of their own boxes to the point that they decided to sell someone else's boxes.
3. Someone started rebroadcasting their signal. First on the internet, eventually on actual radio waves.
Because of 2) they couldn't turn off the hacker's signal. And they didn't want to because this would mean "taking a loss" to shareholders (ie. admitting the financial consequences of their own disastrous past decisions).
So "for business reasons" it may not be as simple as redoing the encryption.
Seems like a fun technical problem to solve. It's certainly a cat and mouse game, but in this case I think the odds are stacked in favor of the mouse, as this sort of task seems like child's play compared to the work that e.g. video game crackers go through and in that case the crackers have negligible resources whereas this station has vast resources.