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A recently published study conducted by HIMSS Media on behalf of Mimecast has revealed 90% of healthcare organizations have experienced at least one email-based threat in the past 12 months. 72% have experienced downtime as a result and one in four said the attacks were very or extremely disruptive.
Healthcare organizations are a major target for cybercriminals. They hold large quantities of personal and health information that can be used for many fraudulent purposes, email-based attacks are easy to perform and require little technical skill, and they often give a high return on investment. Healthcare email security defenses also lag behind other industry sectors and security awareness training is often overlooked.
The study was conducted in November 2019 on 101 individuals that had significant involvement with email security at hospitals and health systems in the United States. 3 out of 4 respondents said they have or are in the process of rolling out a comprehensive cyber resilience program, but only 56% of respondents said they already have such a strategy in place. When asked about their current email security deployments, only half had a high level of confidence that their email security measures would block email-based threats.
When asked about the email threats they had experienced and which were the most disruptive, 61% of respondents said impersonation of trusted vendors were very or extremely disruptive, 57% rated credential-harvesting phishing attacks very or extremely disruptive, and 35% said data leaks and threats initiated by cybercriminals stealing users’ log-in credentials were very or extremely disruptive. The main losses caused by the attacks were productivity (55%), data (34%) and financial (17%).
Email security solutions can block the majority of threats, yet only 79% of respondents said that had email security controls in place or were planning to introduce them. Internet and web protection measures had only been implemented by 64% of surveyed healthcare organizations.
These technical solutions are important, but it is important not to forget the human element. Only 73% of surveyed organizations believed security awareness training was an essential part of their defenses against email-borne cyberattacks. This can partly be explained by the way that training is provided. 40% of respondents said they provide security awareness training less than quarterly and 27% only provide training once a year.
“Organizations are better off doing five minutes of training once a month, instead of 15 minutes of training once a quarter,” said Matthew Gardiner, director of enterprise security at Mimecast. “Even though it’s the same amount of time, it’s better to do the training more often so the information stays top of mind.”
It is alarming considering the number of email-based attacks that 11% of respondents said they conduct security awareness training less frequently than once a year, only during onboarding, or only after a major event such as a phishing attack or data breach.
“To better prepare, information technology and security professionals must strengthen their email security programs by combining the best technical controls with knowledgeable staff and resilient business processes to avoid disruption from email-borne attacks,” said Gardiner.