There's not much maintenance involved in the security of an embedded system. Once you do it, assuming you do it right, you're done.
Now, security is a process. You can expect breaches of high value hardware, and need to react to them.
The security model for consoles STARTS with the assumption that the attacker has physical possession of the hardware. This makes things interesting; it's certainly a big differentiator for PCs versus tablets, and one of the reasons why the Windows group at Microsoft has had a lot of trouble making their stuff secure on non-PCs.
But for a hard drive, things should be pretty contained. I estimated it would have taken a couple of weeks to secure one major embedded system I worked on; assuming the interfaces are limited, it's not a huge deal.
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There's not much maintenance involved in the security of an embedded system. Once you do it, assuming you do it right, you're done.
Now, security is a process. You can expect breaches of high value hardware, and need to react to them.
The security model for consoles STARTS with the assumption that the attacker has physical possession of the hardware. This makes things interesting; it's certainly a big differentiator for PCs versus tablets, and one of the reasons why the Windows group at Microsoft has had a lot of trouble making their stuff secure on non-PCs.
But for a hard drive, things should be pretty contained. I estimated it would have taken a couple of weeks to secure one major embedded system I worked on; assuming the interfaces are limited, it's not a huge deal.