The volume of cyber intrusion activity globally jumped 125% in the first half of 2021 compared with the same period last year, according to the Cyber Investigations, Forensics & Response (CIFR) mid-year update from Accenture. Cyber intrusion activity volume increase driven by web shell activity The triple-digit increase (125%) was driven primarily by web shell activity ― i.e., the use of small pieces of malicious code to gain remote access and control ― targeted ransomware and extortion operations, and supply chain intrusions.

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