Cybersecurity by Design in MedTech: Build It In Before You Ship It
Cybersecurity by design means treating security as part of the medical device itself, from architecture and access to updates, third parties, and lifecycle support.
In this article:
Cybersecurity Is a Product Decision
Know What You’re Connecting
Design for What Happens When Something Goes Wrong
Updates and Patches Are Part of the Product Lifecycle
Third Parties Can Become Your Weakest Link
What This Looks Like Across Our Three MedTech Segments
A Cybersecurity-by-Design Readiness Check
Cybersecurity Has to Hold Up Over Time
I have never liked the idea of cybersecurity being a box you check near the end of product development. By then, a lot of the important decisions have already been made.
You have chosen the architecture. You know how the device connects. You have picked cloud platforms, APIs, third-party software, mobile apps, and data sources. You may already have integrations into hospital systems or remote service capabilities in place.
Then somebody asks, “Is it secure?” That conversation needs to happen much earlier.
For medical device manufacturers, cybersecurity is now part of the product itself. It affects how the device is designed, what it connects to, how data moves, how software gets updated, who can access it, and what happens when something goes wrong.
And connected medtech gives attackers more places to look.
A smart implant may communicate with a mobile app and cloud platform. Surgical equipment may sit on a hospital network and support remote service. Software as a Medical Device may depend on APIs, external data sources, cloud infrastructure, or AI services.
Every connection adds value. It also creates another place you have to think about security.
I do not think the answer is to make connected products less connected. The answer is to make cybersecurity part of the design conversation from day one, while you still have the ability to make good decisions without having to undo expensive ones later.
Cybersecurity Is a Product Decision
Cybersecurity is not something that sits beside the product. It gets baked into the choices you make about the product.
A medical device manufacturer is making security decisions every time it decides:
- 1
How the device connects
Wi-Fi, Bluetooth, cellular, hospital networks, remote access, or some combination of them. - 2
Where the data goes
On the device, into the cloud, into a hospital system, or through a third-party platform. - 3
Who gets access
Clinicians, patients, field service, administrators, partners, or support teams. - 4
How software gets updated
Onsite, remotely, automatically, or through a controlled release process. - 5
What happens when something fails
Does the device stop working? Fall back to a safe mode? Keep operating with limited functionality?
Those are product decisions first. Security follows directly from them.
I think medtech companies get into trouble when these choices are made for convenience or speed, and the security implications are dealt with later.
Take remote service as an example. It can make support much faster and reduce the need for onsite visits. That is useful. But now you also have to think about authentication, access controls, logging, session management, and what happens if those credentials are compromised.
The same goes for mobile apps, APIs, cloud services, and third-party software.
The question should not be, “Can we connect this?” It should be, “Can we connect this safely, maintain it over time, and still support the product if that connection becomes a problem?”
That is a much better design question.
Know What You’re Connecting
Connected medtech products rarely depend on one system.
A single medical device may touch several technologies before the data reaches the person who needs it.
That can include:
Each connection creates another dependency. And each dependency is something the manufacturer has to understand well enough to secure, monitor, and support.
I would start with a simple question: Do we actually know everything this product connects to?
That sounds basic, but it gets harder over time. Products evolve. New integrations get added. Vendors change. Software libraries get updated. Teams may introduce a new cloud service or analytics tool without revisiting the full security picture.
This is why asset and dependency visibility is so important.
Medtech teams should know:
- 1What is connected
- 2Why it is connected
- 3What data moves through it
- 4Who can access it
- 5Who is responsible for maintaining it
- 6What happens if that connection fails or gets compromised
If you cannot answer those questions, you probably do not have a complete view of your attack surface.
And in a connected medical device environment, what you cannot see is usually the part that causes the biggest surprise later.
Design for What Happens When Something Goes Wrong
You cannot design a connected medical device around the assumption that every connection, credential, update, and third-party service will always work exactly as intended.
Something will eventually fail. The more useful question is: what happens next?
For medtech companies, that means thinking about security and resilience together. A good design should account for things like:
- 1
Safe failure
If a connection drops or a service becomes unavailable, does the device fail in a predictable and safe way? - 2
Limited access
If one account or system is compromised, how much can that user or system actually reach? - 3
Segmentation
Can one compromised component affect the rest of the device, network, or care environment? - 4
Visibility
Can the manufacturer detect unusual activity, trace what happened, and understand which systems were affected? - 5
Recovery
Can the device or service be restored without creating a major disruption for the patient or provider?
This is where I think security teams and product teams need to work much more closely.
A technically secure response is not always a clinically practical one. Shutting down a service may contain a threat, but what does that mean for a patient who depends on it? Delaying an update may protect availability, but does it leave a known vulnerability open too long?
Those tradeoffs need to be worked through before there is an incident. For medical device manufacturers, the goal is to make sure one problem does not become a much bigger one because nobody planned for what would happen next.
Updates and Patches Are Part of the Product Lifecycle
A connected medical device is never really finished. Software gets updated. Operating systems change. New vulnerabilities get discovered. Third-party components reach end of support. Cloud services evolve.
Medical device manufacturers have to plan for that from the beginning.
The challenge is not simply whether a patch can be created. It is whether the company can test it, validate it, deploy it safely, document it, and support customers through the change.
That means having a clear process for:
- 1
Monitoring vulnerabilities
Know when a component, library, platform, or integration creates a new risk. - 2
Prioritizing what needs attention
Not every issue carries the same clinical or operational impact. - 3
Testing the fix
A security patch should not create a new problem somewhere else in the product. - 4
Deploying it safely
Decide how updates reach the device and what happens if the update fails. - 5
Tracking who is current
Know which devices, customers, or sites have received the update and which have not.
This gets especially difficult when products stay in the field for years.
A surgical system may still be operating long after some of its original software components were released. A smart implant or wearable may depend on a mobile app or operating system the manufacturer does not control. A SaMD product may rely on several cloud services or third-party libraries that change on their own schedules.
That is why patching cannot be handled as an emergency process every time something comes up – it needs to be part of the product lifecycle.
I would much rather see a medtech company answer the update question before launch than scramble to answer it when a critical vulnerability is already public.
Third Parties Can Become Your Weakest Link
Most connected medical devices depend on technology the manufacturer did not build. That may be a cloud platform, software library, API, mobile operating system, analytics service, remote support tool, or another vendor embedded somewhere in the product.
That is normal. It would be unrealistic for a medtech company to build every component itself.
But you still own the risk.
If a third-party service goes down, introduces a vulnerability, changes an API, or stops supporting a component, the customer is not going to separate your product from your vendor’s problem.
Medical device manufacturers need a clear view of:
- 1What third-party technology the product depends on
- 2What access or data each vendor has
- 3How security responsibilities are divided
- 4How vulnerabilities and incidents will be communicated
- 5What happens if the vendor changes, fails, or disappears
- 6How the dependency can eventually be replaced
The last question in particular gets overlooked, I think. A vendor may be a great fit today, but medtech products can stay in the field for a long time. The technology around them can change much faster.
That is why vendor selection should include more than features and price. Security practices, support commitments, update policies, data handling, and long-term viability all belong in the decision.
You cannot outsource every dependency. And you definitely cannot outsource accountability for what happens to the product.
What This Looks Like Across Our Three MedTech Segments
Cybersecurity risk looks different depending on the type of medtech product.
For Agentic and Software as a Medical Device, the biggest concerns are usually around data access, APIs, identity, cloud services, third-party models, and how the software is updated over time.
For smart implants and wearables, the attack surface expands quickly. You may be dealing with Bluetooth, mobile apps, patient accounts, cloud connectivity, device telemetry, and remote monitoring platforms.
For surgical equipment, the risks often center around hospital networks, remote service access, software updates, connected accessories, and integration with other clinical systems.
The technology is different, but I would ask the same basic questions in each case:
- 1What can someone access if a credential is compromised?
- 2What data could be exposed or altered?
- 3What happens if a connected service goes down?
- 4Can the product still operate safely?
- 5How quickly can we detect, contain, and recover from an issue?
The more connected the product becomes, the less useful it is to think about cybersecurity as one isolated feature.
It becomes part of product design, service, support, quality, regulatory planning, and the full lifecycle of the device.
A Cybersecurity-by-Design Readiness Check
Before a connected medtech product moves forward, I would pressure-test five areas.
If one of these areas is weak, the risk usually does not stay isolated.
For medical device manufacturers, cybersecurity by design is really about making sure security decisions can hold up across the full product lifecycle, not just at launch.
Cybersecurity Has to Hold Up Over Time
For medtech companies, cybersecurity is not a one-time design review and it is definitely not just a regulatory requirement.
It follows the product.
It shows up in the architecture, the integrations, the software updates, the third parties, the service model, and the way the device is supported years after launch.
That is why I keep coming back to the same point: build it in early.
You will make better architecture decisions. You will understand your dependencies sooner. You will have a clearer plan for updates and incident response. And you will spend less time trying to bolt security onto a product that was never designed for it.
Connected medical devices are only going to become more connected. The companies that handle that well will be the ones that treat cybersecurity as part of product ownership from the beginning.
Next in the Series: Regulatory Harmonization
The next trend takes us from product security to global scale.
Medtech companies want to move products into more markets without rebuilding the regulatory process every time. The problem is that “harmonized” does not mean “identical.”
In the next article, I’ll look at where regulatory alignment is actually helping medical device manufacturers, where local differences still create friction, and how companies can build a more reusable regulatory foundation without assuming one process will work everywhere.
