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Researchers say spyware was hidden in online ads

The University of Toronto's Citizen Lab says Israeli firm Discover-Tech, which presents itself as an ad company, let spyware makers use online ads to infect devices without any click. Researchers say computers at Al Jazeera were targeted. Citizen Lab's Bill Marczak advised people who might be targeted to disable ad tracking or block ads. Discover-Tech did not respond to requests for comment.

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Published Thursday, October 15, 2026. Spot an error? Email [email protected]. See our corrections log and standards.

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