The top malware families and TTPs used in Q2 2021. Last quarter, ransomware was not the most dominant threat , account ing for a bout 46% of all threats and more than tripling the next most common threat, which was the exploitation of vulnerabilities in Microsoft Exchange Server.. Although ransomware was the top threat, there were very few observations of commodity trojan use this quarter. Health care was targeted the most out of all verticals for the third quarter in a row, with government being the second most-targeted. There are many reasons why actors are continuing to target the health care industry, including the COVID-19 pan demic incentivizing victims to pay to restore services as quickly as possible. • Hospitals More Vulnerable to Botnets, Spam, and Malware than Fortune 1000 Firms