- Ransomware, cryptojacking and Internet-of-Things malware were the most prevalent forms of cyberattack in 2021.
- Despite making up a small percentage of other cybercrimes, business email compromise attacks, where hackers impersonate a colleague, cause the most financial damage of any attack type. The FBI estimated that in 2020, these attacks cost businesses $1.8 billion.
- The most common business email compromise attack takes the form of impersonation of emails from senior executives (44 percent) or the email account of an employee (23 percent).
- In 2021, healthcare saw an 121 percent increase in malware attacks, with 16.3 percent of healthcare customers being targeted in a given month.
- Cryptojacking also increased in healthcare, with a 218 percent growth in 2021.
- The healthcare industry does a good job of keeping malware out of Internet-of-Things devices, which, given their critical importance, are often kept on separate, highly secured networks.
A phishy email, a dodgy URL or a bad download: How will the next cyberattack take form?
From cryptojacking to malicious email impersonations, cyberattacks are getting smarter and more broad. Cybersecurity company SonicWall released its 2022 Cyber Threat report, revealing six key findings into how cybersecurity is changing: