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Microsoft Word is one of the leading applications to view, share, edit, manage, and create word documents on your Windows PC. Such control begins with authentication and relies on complete visibility, which can only be achieved when going all the way down to Layer 1.īox-shadow: 0px 1px 3px rgba(41, 50, 61, 0.Joe Wainer Updated a month ago A classic program for working with Word documents The only way to secure IoT devices and minimize their threat to the healthcare environment is to control their network access, whether that means blocking a device or restricting and heavily monitoring its access. The interconnectedness of IoT devices means just one exploited vulnerability can cause significant disruptions to healthcare operations – and when human lives are at stake, the risk is too high to take. With enhanced device authentication and authorization, risks posed by IoT devices to the healthcare environment get minimized as unauthorized devices do not gain network access, and those which are authorized get properly managed and controlled.
With complete visibility into IoT devices, HDOs can be sure that device authentication is accurate and reliable and that subsequent authorization processes are, too. Further, such visibility enables the detection of abnormalities in device behavior, which could indicate device manipulation. Unlike a MAC address, Layer 1 indicators cannot get changed, nor can devices hide by operating passively or out-of-band. Rather than relying on traffic monitoring, Layer 1 data signals, such as noise level, voltage, signal timing, current, and more, offer greater and deeper insights into device characteristics for accurate identification. Layer 1 Device Security: Securing Starts with SeeingĬomplete visibility and, in turn, reliable authentication of IoT devices requires Physical Layer (Layer 1 device security) data. Ultimately, the weak spot in these protocols is visibility Layer 2 data is insufficient in identifying IoT devices, and one of the greatest concerns for HDOs is that they lack the visibility to properly authenticate IoT devices. In turn, IoT devices might get erroneously authenticated or bypass authentication altogether, subsequently gaining network access and putting the entity at serious risk. However, a MAC address database must be created and maintained more importantly, MAC addresses easily get spoofed, and some devices don’t even have a MAC address, thus rendering MACsec and MAB weak authentication protocols. Alternative authentication protocols exist, such as MACsec and MAB, both of which rely on a device’s MAC address for authentication, using Layer 2 data packets to identify this indicator. IoT devices are non-802.1x compliant, meaning this authentication protocol is unsuitable.
IoT security begins with device authentication to ensure network access is granted only to those with authorization. Layer 2: Limited Visibility Means Weak Authentication Yet, despite widespread knowledge of the risks associated with IoT devices, security in this domain remains weak and rudimentary, and, in 2021, IoT security projects dropped by an alarming 16 percent. Combining the high-stake healthcare environment with the high-risk nature of IoT devices means security is imperative. Additionally, IoT devices are sought after by malicious actors thanks to their access to and collection of data (with Protected Healthcare Information (PHI) having the most monetary value), as well as their connectivity. More than 50 percent of IoT and IoMT devices contain critical vulnerabilities, and these highly-accessible devices often lack necessary built-in security measures – a recipe for disaster. IoT (and IoMTs) devices are vulnerable by nature. 'Combining the high-stake healthcare environment with the high-risk nature of IoT devices means security is imperative.' -Sepio Click To Tweet
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