Medical Devices Fall Short in Security Best Practices

More than half of medical device makers and healthcare delivery organizations anticipate an attack on their medical devices within the next 12 months, but only a smattering take significant steps to prevent it, according to a survey released today.

Over the next 12 months, 67% of medical device makers expect an attack on their devices, but only 17% of these companies are taking significant steps to prevent it, according to a Ponemon Institute study released today by Synopsys.
The study,
Medical Device Security: An industry Under Attack and Unprepared to Defend
, also found similar results for the healthcare delivery organization (HDO) industry, with 56% of survey respondents anticipating an attack on their devices within the next 12 months and 15% taking significant measures to mitigate it.
Part of the reason may rest with the survey results that show only one-third of the 550 North American medical device makers and HDO organizations were aware of potential adverse effects on patients due to insecure medical devices. But Mike Ahmadi, global director for critical systems security for Synopsys Software Integrity Group, said a companys action (or inaction) to mitigate attacks often comes down budget.
When you look at preventing attacks, it doesnt make patient care any better. Its only looked at as a cost, he says.
Hurdles in Building Secure Medical Devices
According to the survey, 80% of respondents characterized medical device security as difficult to achieve. The top three challenges they cited included a lack of knowledge and training in building secure code, accidental coding errors, and pressure to meet production deadlines, the survey found.
But Ahmadi noted production deadlines are by far the biggest reason why companies dont put into place secure coding practices.
Everything comes down to money, Ahmadi says. We have come to people and told them we found a problem in their code and they say they cant fix it because they are too far along in the development process.
The stakes are high in the healthcare field, where it can take anywhere from 18 months to three years and beyond to get Food and Drug Administration (FDA) approval for a medical device, while in the meantime its costing thousands, upon thousands of dollars to keep operating during the approval process, Ahmadi says.
This pushback is nothing new for the security industry, which has endured similar tensions with other industries when software development teams are told to rework the code because of security flaws found in the software.
Trifecta Impact on Medical Device Security
Lax security testing, a lack of accountability and the FDAs cybersecurity guidance versus mandatory requirements have been detrimental to establishing strong cybersecurity on medical devices, according to the report.
According to the survey, 43% of medical device manufacturers and 53% of HDOs do not conduct cybersecurity testing on their medical devices. Meanwhile, only 9% of device makers and 5% of HDOs conduct medical device testing at least once a year.
And cybersecurity accountability at medical device makers and HDOs can sometimes be a mystery. It turns out that nearly one-third of survey respondents for both medical device makers and HDOs had no single person or job function that was primarily responsible for cybersecurity for the devices.
Lastly, only 51% of medical device makers and 44% of HDOs adhered to the voluntary FDA guidelines designed to mitigate cybersecurity risks in medical devices, according to the survey.
FDA Fact or Fiction?
Over the years, Ahmadi complained that the FDA has loosened regulations and guidelines on medical devices to where, in the case of Medical Device Data Systems (MDDS) these devices have morphed from a Class III device with high risk to a Class 1, low-risk, in February 2011, according to FDA
documents
. And in February 2015, according to FDA
documents
, the agency deregulated Class 1 MDDS devices to a classification as unregulated.
There are no cybersecurity laws for these devices and only voluntary guidelines, he noted. He added there is talk outside of the FDA to try to the voluntary guidelines into mandatory requirements.
In the last week of December, the
FDA issued guidelines
for handling cybersecurity monitoring on post-market medical devices. The voluntary guidelines were issued a couple weeks prior to the FDAs announcement in the controversial case involving St. Jude Medicals pacemaker devices and allegations by hedge fund Muddy Waters Capital and security researcher MedSec that vulnerabilities in St. Judes pacemakers could potentially put patients at risk. In early January, the FDA confirmed the St. Jude vulnerabilities,
putting out a notice
to the public.
The FDA, however, contends it has regulations in place that address cybersecurity.
Medical device manufacturers must comply with federal regulations. Part of those regulations, called quality system regulations (QSRs), require that medical device manufacturers address all risks, including cybersecurity risk, said an FDA spokeswoman. The FDA has issued pre- and post- market cybersecurity guidances to provide recommendations for manufacturers to meet QSRs. These guidances represent the agency’s current thinking on this topic.
Manufacturers may choose to follow the recommendations in these guidelines, or they may choose other methods of managing cybersecurity in their devices, providing they comply with the QSR requirements and all other applicable FDA laws and regulations, she added.
But Morey Haber, vice president of technology for BeyondTrust, said cybersecurity basics should be enforced on every device sold that covers a life-saving function like a pacemaker or insulin pump.
If the government can provide specifications for cars to have safety standards, theres no reason they should not be applied to medical devices, as well. This is especially true if a hack could potentially kill someone, Haber said.
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Medical Devices Fall Short in Security Best Practices