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What made this ransomware, called WannaCry, so different than others was the ransomware’s ability to combine lateral movement. As opposed to other ransomware that typically infects a few devices within an organization, WannaCry had worm-like capabilities, spreading itself throughout the organizational network and hitting servers.
While a “kill-switch” was used against WannaCry, organizations are undoubtedly going to continue suffering from WannaCry’s remnants within organizations. More so, the impact of WannaCry will motivate ransomware authors to start adopting lateral movement capabilities. Yet, with all the advanced malware techniques, security professionals are required to ensure the continuous operations of their systems.