Table 2.

Security incidents during the COVID-19 pandemic.

Security incidents	Type of attack	Impact
Brno University Hospital [3]	Ransomware	Postponement of surgeries, appointments, etc
US Department of Health and Human Services [4]	Distributed denial of service	Disruption to COVID-19 pandemic responses
World Health Organization [5]	Ransomware/phishing	Defacement and misinformation
Gilead Sciences, Inc [6]	Phishing	Impersonation and exfiltration
Hospitals in Romania [7]	Phishing/ransomware	Disruption and exfiltration
Health care supply chains [8]	Malware	Disruption of activities