This week, in Commonwealth v. Kurtz, the Pennsylvania Supreme Court upheld the use of a “reverse keyword” request that led police from a pool of Google searches to a suspect in a 2018 kidnapping and rape, concluding that the data fell under the long‑standing “third‑party doctrine.” The opinion announcing the judgment said that when people type searches into Google without extra privacy tools, they effectively share those queries with the company and assume the risk that Google may hand them to police. The ruling means that, under both the U.S. Constitution’s Fourth Amendment and Pennsylvania’s own search‑and‑seizure protections, those basic...