rexi<p><a href="https://arstechnica.com/security/2025/06/meta-and-yandex-are-de-anonymizing-android-users-web-browsing-identifiers/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">arstechnica.com/security/2025/</span><span class="invisible">06/meta-and-yandex-are-de-anonymizing-android-users-web-browsing-identifiers/</span></a></p><p><a href="https://mastodon.social/tags/tracking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tracking</span></a> code <a href="https://mastodon.social/tags/Meta" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Meta</span></a> and Russian <a href="https://mastodon.social/tags/Yandex" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Yandex</span></a> embed into millions of websites is <a href="https://mastodon.social/tags/deanonymizing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>deanonymizing</span></a> <a href="https://mastodon.social/tags/android" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>android</span></a> users by abusing legitimate <a href="https://mastodon.social/tags/Internetprotocols" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Internetprotocols</span></a>, causing <a href="https://mastodon.social/tags/Chrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chrome</span></a> and other browsers to surreptitiously send <a href="https://mastodon.social/tags/uniqueidentifiers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>uniqueidentifiers</span></a> to <a href="https://mastodon.social/tags/nativeapps" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nativeapps</span></a> installed on their devices…<a href="https://mastodon.social/tags/Google" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Google</span></a> says it's investigating the abuse, which allows Meta and Yandex to convert ephemeral web identifiers into persistent mobile app user identities.</p>