Experts at Radboud University and IMDEA Networks found that Meta and Yandex have been covertly tracking Android users by monitoring browser activity without consent. This tracking was first identified in January and involves apps like Facebook, Instagram, and Yandex Maps operating in the background and loading scripts that transmit data back to their respective apps. These scripts bypass Android's security measures, allowing the companies to track users' web browsing activities. The tracking affects all major Android browsers, including incognito mode. Google confirmed that Meta and Yandex exploited Android's capabilities in violation of security and privacy principles. Meta is investigating the issue and has paused the feature, while Yandex claims to adhere to data protection standards. Meta's tracking has been ongoing for about eight months, while Yandex's practices date back to 2017. Facebook tracked users on around 16,000 websites in the EU, and Yandex was active on 1,300 sites. Google has begun implementing changes to address these tracking techniques and is conducting its own investigation. Browsers like Firefox, Microsoft Edge, and DuckDuckGo are also affected, with efforts underway to prevent future incidents.