CrowdStrike report warns that cyber aggressors are sharpening their tools

A new report by cybersecurity firm CrowdStrike finds cyber attackers are staying longer in the systems they infiltrate -- aided in part by “malware-free techniques” -- in a sign that adversaries are advancing their own methods and techniques on pace with improved defenses by government and industry.

“The average adversary dwell time increased from 85 to 95 days in 2019, due in part to advanced adversaries employing stronger countermeasures, allowing them to remain hidden longer, in some cases, for years,...