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1) The VPNFilter router malware affects many more devices than previously thought.

2) Adobe delivered an urgent fix for a zero-day Flash Player flaw being actively exploited.

3) Four alleged members of a CEO fraud racket that caused millions of dollars in losses to businesses were arrested.

4) A vulnerability dubbed "Zip Slip" enables attackers to conceal malware in archive files, potentially affecting huge numbers of open-source projects.

5) A highly critical Cisco bug, affecting the way system admins authenticate users across the network, is now patchable by updating to the latest Access Control Server version.