Is Privacy Sandbox’s Federated Learning of Cohorts leaking information about web browsing history? Let's find out.
Federated Learning of Cohorts is computing a SimHash on a user's web browsing history (the lists of visited websites) to obtain the cohort ID. In principle, it is a lossy computation: when only…
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Research works conducted in the previous two decades bore fruits. At many organisations or companies, privacy has become elevated in importance. One of such potentially recent developments in the discussion around the changes to the web platform that could support the work of privacy-preserving digital advertising systems, the design of…
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The UK just released its comprehensive report Integrated Review concerning future diplomatic and military capabilities. While the document discusses foreign policy, adversaries, and kinetic forces such as missiles, tanks, or nuclear weapons, it contains interesting tidbits about cybersecurity and cyberwarfare (and is perhaps analogical to the other one from France)…
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Digital web advertising is an ecosystem undergoing strategic changes. Google’s Privacy Sandbox is promising to redesign web advertising technology in ways that will respect user’s privacy, including based on some previous designs. Detailed technically-enabled analysis should wait until more design features are known.
In this post I focus…
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User tracking technologies are ubiquitous on the web. In recent times web browsers try to fight abuses. This led to an arms race where new tracking and anti-tracking measures are being developed. The use of one of such evasion techniques, the CNAME cloaking technique is recently quickly gaining popularity. Our…
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