Weekly Cybersecurity Threat Advisory

Threat Landscape Summary (13 – 20 April 2026) I. EXECUTIVE SUMMARY This report covers the cybersecurity threat landscape from 13 to 20 April 2026. The period was defined by a record-breaking Microsoft Patch Tuesday, an escalating cloud-extortion campaign by ShinyHunters, active exploitation of multiple zero-day vulnerabilities, supply-chain compromises affecting critical platforms, and ransomware disruptions across

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