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compromised – it could mean trouble
for the entire network. Zero Trust aims to
create strategies which cannot be undone
by a single oversight.
Zero Trust is a concept that has become
popular in recent years. First conceived by
Forrester, Zero Trust demolishes the castle
walls on which we have so long relied – not
because it wants to stop protecting, but
because it wants to protect what’s inside.
Building on previous concepts, like the principle
of least privilege and defence in depth, Zero
Trust does not implicitly trust anything. Any
system, device or user that wants to connect
to a resource must first be verified and trusted
before it gets to connect to anything.
Medical environments, especially ones
leveraging IoT, will be filled with endpoints,
devices, systems and connections all
needing to communicate. As important
as speedy access to those things are, they
have to do so securely and at the level of
the individual resources.
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With an ephemeral perimeter based on task
level identification as opposed to on some
increasingly arbitrary basis, resources can be
protected individually and granted access to
according to their own level of risk. Each can
be protected according to the risks against
it. So too can the level of authentication
required to access it.
As the world is joined up through the
inescapable march of technological
innovation, it’s important that we take a step
back. One fatal mistake of embracing IoT is
seizing that promise of innovation without
thinking about how quickly technology can
morph from a blessing to a curse.
Healthcare professionals realise this. In the
2017 Internet of Health Things survey, a
majority of those surveyed identified three
top barriers for IoT adoption in the health
sector: privacy concerns, security concerns
and legacy system integration.
The health sector’s experience is not a
unique one, but it does stand to gain
FEATURE: INTERNET OF THINGS
ZERO TRUST
AIMS TO CREATE
STRATEGIES
WHICH CANNOT
BE UNDONE
BY A SINGLE
OVERSIGHT.
and possibly lose more than many of the
industries undergoing the same process.
The technology is changing and we can no
longer build high enough walls to contain it.
We have to find ways to build around it, not
against it. n
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