A pandemic-focused year made the events of 2020 unprecedented in numerous ways, and the cyber attacks were no different.
As the world transitioned to virtual everything -- work, school, meetings and family gatherings -- attackers took notice. Attackers embraced new techniques and a hurried switch to remote access increased cyberthreats across the board. For example, K-12 schools took a brunt of the hit, and new lows were reached like the exfiltration of student data. The list of top cyber attacks from 2020 include ransomware, phishing, data leaks, breaches and a devastating supply chain attack with a scope like no other. The virtually-dominated year raised new concerns around security postures and practices, which will continue into 2021.
While there were too many incidents to choose from, here is a list of 10 of the biggest cyber attacks of 2020, in chronological order.
Toll Group tops the list for the year's worst cyber attacks because it was hit by ransomware twice in three months. However, a spokesperson for Toll Group told SearchSecurity the two incidents were not connected and were "based on different forms of ransomware." On Feb. 3 the Australia-based logistics company announced on Twitter that it had suffered a cyber attack. "As a precautionary measure, Toll has made the decision to shut down a number of systems in response to a cyber security incident. Several Toll customer-facing applications are impacted as a result. Our immediate priority is to resume services to customers as soon as possible," Toll Group wrote on Twitter. The most recent attack occurred in May and involved a relatively new ransomware variant: Nefilim.
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