Webroot has released its third annual Nastiest Malware list highlighting 2019's worst cybersecurity threats and the fact that consumers and businesses alike need to take cybersecurity education more seriously.

Ransomware campaigns continued to see success this year by evolving to a more targeted model initially adopted in previous years and SMBs remain a prime target as they struggle with limited security budgets and cybersecurity skills.

Emotet, Trickbot and Ryuk was one of the most successful chains of 2019 in terms of financial damages.

These malware strains have shifted their focus to more reconnaissance-based operation in which they assign a value to a targeted network after it has been infected and then send the ransom for that amount after moving laterally inside the network.

Gandcrab was the most successful instance of ransomware as a service to date and its authors have boasted shared profits in excess of $2bn.

However, after Gandcrab's authors retired, Sodinokibi (Sodin/REvil) rose to take its place.

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