Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign | HappeningNow.news
Published Date: July 21, 2026

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Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign

Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home

Source The Register AI Summary Updated 13h 29m ago
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Freshness Aging Updated 13h 29m ago
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Read time 1 min ~16 words

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Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home

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