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by iancmceachern 829 days ago
Agree with you here.

Wanted to echo " It's (cybersecurity) pretty painful right now".

The FDA just implemented new requirements. Basically they require penetration testing on all new medical devices. The issue is they don't have the expertise in house to know the technical details, and they haven't defined the tests, etc. Additionally they're isn't yet an ecosystem of partners and service providers yet to provide and compete in providing those penetrstion testing services.

Pragmatically what it means for folks trying to get a device cleared at the current moment:

You need to send your device to the one and only penetration testing house that does this for the FDA now and let them try to physically hack into your medical device. You have to make it impossible and evident if someone tampers with it in any way. This is in addition to all the software security stuff we need.

Imagine of you were making computer monitors. One day you are suddenly required to make it so a technical expert cannot open the monitor up using specialized tools.

3 comments

From a submission standpoint, as I write this, FDA seemingly cares more about cybersecurity than your medical device actually demonstrating safety and efficacy within intended use. The time that review teams have to review any given device has stayed the same, but fear-driven, heavy-handed cybersecurity regulations (which must be followed) have been added to the mix.
Respectfully, it sounds like the FDA is trying to implement requirements for manufacturers to do what they should've been doing all along. The shitty flipside to my point is that market forces pushed manufacturers to cut costs and externalize the infosec risk onto the patients. The secure products aren't interesting to medical healthcare providers.

I'm, admittedly, a bit salty because I recently looked at a healthcare device that I was prescribed and found evidence that my data is likely being trivially exposed by anyone who wants to look. I can't verify this because it's very likely illegal, and I don't feel comfortable reporting it to the device vendor for fear of being accused of hacking. If there's a way to report it to the FDA, I'd be thrilled -- but I don't know what that looks like.

Did they provide you with Instructions for Use as a lay person? This might contain the legalese on what is or isn't permissible.

The company is required to have a complaint handling process, such that you making them aware of these vulnerabilities would mean they have to at least handle the feedback.

Maybe your findings can be rephrased in a way that don't require you to show how vulnerable their servers are, but that you suspect it's unsafe.

True. The issue is they aren't specific about it. One penetration testing house may pass a device when another doesn't.

They haven't solved the issue. They've highlighted it and left it up to chaos to solve it.

I'm more surprised that medical devices were not previously required to be tamper evident.
They are, and it's generally good practice. The difference is now they spend much more time and effort on the penetration testing.

An example. In the past it would be OK to use security bit screws for this. Yes you can buy the bits online, but it was at least one layer of perceived security.

This doesn't fly anymore.

The real challenge is they implemented these new requirements on devices that were already in the submission process. Also, these things aren't written down anywhere in standards etc. so you know them ahead of time when you design. You have to just wait until the penetration testing and find out.

Ultimately the new rules aren't the challenge, it's the fact that you don't get to know them when you start and finish the design, you find out later.

Isn't the intention that everyone submitting their devices for approval have done in-house penetration tests extensively? Or at least laid out specific claims as to what it can endure and what it cannot?

The third party test seems to be just the last verification stage to reassure the FDA the company is not making unsupportable claims.

Not really because these things aren't defined.

There is no definition or standard to which you would do your in house tests to. It's not like other things where you design it to comply with iso whatever and then you test to that.

Here the standard so to speak is defined by the penetration test itself.

An example in safes. No safe is untraceable. Safes are spec'd by number of minutes to resist a tool attack. Then when a safe company goes to UL or whatever to certify the safe, UL technicians get the best commercially available tools and try there best to break into the safe and time themselves. If it takes them more than the spec, it passes.

Here there is no spec. There is no defined time. There is no standard. It's just up to what you can get the penetration test house to agree to write.

But the company has to submit in writing an application laying out their claims?

I'm not really sure why the lack of such a standard definition prevents people from writing that down and then being willing to back up their words?

I can see a time efficiency argument, cost reduction argument, etc., for standard definitions here, but at the end of the day, they're not necessary.

The companies that offer the most credible products, verified via third party testing, get FDA approval. Everyone else gets weeded out.

>"But the company has to submit in writing an application laying out their claims?"

How so?