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#3 SecurityWeek general October 17, 2026 at 11:00 UTC

Israeli Ad Firm Doubled as Candiru’s Zero-Click Spyware Delivery Channel

By Ionut Arghire

AI Summary

Israeli advertising firm Discover-Tech was used as a covert delivery channel for Candiru's zero-click spyware, enabling threat actors to fingerprint and track devices at scale through ad infrastructure before selectively infecting high-value targets. The technique bypasses traditional infection vectors by weaponizing legitimate ad-serving pipelines, making attribution and detection significantly harder. Security practitioners monitoring for Candiru-linked activity should add ad-network telemetry to their threat hunting scope.

Relevance score: 75.0/100

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