Citizen Lab Traces Zero-Click Candiru Spyware Infections at Al Jazeera to Targeted Online Ads
Citizen Lab says Candiru spyware hit at least 45 Al Jazeera devices via zero-click ads.
The Citizen Lab reported that Israeli spyware maker Candiru infected Al Jazeera devices through online ads that ran without a click. Discover-Tech ads sent advertising IDs and IP addresses to a server that returned browser or app exploit code only for chosen targets. At least 45 devices were targeted in 2024 and 2025, and a recovered Windows sample matched Candiru tooling analyzed in 2021. Google, IAB Europe, and other ad platforms later removed or blocked Discover-Tech.