Hack medical device
In the interview below, Christian explains why the medical industry is so ripe for cybersecurity attacks, and just how serious —and complicated—the problem is. Medical devices have largely been neglected from a cybersecurity perspective. Many of these devices run legacy operating systems, are full of vulnerabilities, and were.
For ease of management, data access, updates, etc. Hospital networks are inherently unsecure; any threats to a hospital network are transferred to connected medical devices. Threats to implantable devices are primarily due to unsecure wireless communications.
Implantables were designed to be easy to monitor and update via wireless technology. It is too risky to perform heart surgery every time a pacemaker or implantable cardioverter defibrillator ICD needs to be updated, for example. The threats to medical devices are a big problem with severe and potentially lethal consequences. Our process depends on the scope of the engagement. As for hacking everything and anything, the process I just mentioned applies a risk-based approach to our assessment.
We focus on the big-ticket items first with the highest risk to patient safety, emphasizing how the device could be misused and the effect of attacks on data confidentiality, integrity, and availability.
We work with manufacturers and providers to fix the most critical items first, then work down a prioritized list, based on the risk. We also run validation tests to ensure remediation steps worked. Some are more receptive than others. Unfortunately, company bureaucracy, cost, timelines, and other factors present obstacles to fixing devices under development or devices deployed in the field.
It is very costly for medical device manufacturers to fix devices that are deployed across the world, or ones that are in the middle of development. A couple reasons. IPnet is used in many medical devices. A possible hack could be difficult to detect. Read More. So far there have been no reports of devices or networks being hacked this way, but the agency wants patients to remain wary.
Because an attack may be interpreted by the device as a normal network communication, it may remain invisible to security measures. Most pieces of equipment that are now smart were once standalone and independent. Now they are part of the network. The IV dispensing medicine and the sensors monitoring vital signs are no longer segregated; they communicate with other devices to exchange data and automate actions.
An integrated network has many benefits for healthcare. It helps care be more responsive, with automated features performing special tasks like adjusting the flow of medication from the IV. It is clearly improving care, but without proper security, the risks can outweigh the rewards.
Without proper security, smart medical devices are easily breachable. To a hacker, they only need one weak device to penetrate a network. This surge means that hackers are finding programs on the network that are vulnerable. In fact, there are some specific areas identified by many in the community to be the most vulnerable, including those running Windows as well as cloud-connected and Bluetooth-enabled devices.
While there are inherent risks with any device on a network, some smart devices are even more vulnerable. However, Windows is pervasive and can be found running a variety of equipment from CT scanners to infusion pumps. An example of the Windows weakness was the WannaCry ransomware attack. What was the culprit? The incident was linked to a Windows vulnerability. If a medical device is Windows-powered, more vigorous strategies need to be in place, including applying security patches as soon as they are released.
The capabilities that cloud-connected device provide have enabled better communication for medical teams. Any single device creates new targets for malicious hackers. Included in this category are implantable devices, such as pacemakers and ICDs.
This adds yet another layer or concern. These implanted devices send valuable information to the cloud.
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