IoT malware attacks rose by 6% in 2021

IoT malware attacks continue to be a significant threat as the number of connected devices grows, according to SonicWall.

Threat researchers diligently tracked the dramatic rise in ransomware, recording an astounding 318.6 million more ransomware attacks than 2020, a 105% increase. Ransomware volume has risen 232% since 2019.

High-profile ransomware attacks impacted businesses, state and federal governments, schools, hospitals and even individuals. Attacks hit supply chains, causing widespread system downtime, economic loss and reputational damage. Following global trends, all industries faced large increases of ransomware volume, including government (+1,885%), healthcare (755%), education (152%) and retail (21%).

IoT malware volume rose 6% in 2021, totaling 60.1 million hits by year’s end. While this isn’t good news, it’s at least better than it has been: In 2019 and 2020, IoT malware volume rose 218% and 66%, respectively. With no corresponding slowdown in the proliferation of connected devices, this suggests that attack volumes may be leveling off.