No Place Like Home Network: Disrupting the World's Largest Residential Proxy Network

**Executive summary:** Google Threat Intelligence Group disrupted IPIDEA, a large residential proxy network that embeds SDKs in apps to enroll consumer devices as proxy exit nodes; this infrastructure—used by hundreds of threat groups and to enable multiple botnets—was targeted via legal takedowns, intelligence sharing with platform providers and law enforcement, and Play Protect mitigations, significantly degrading the network and reducing the pool of infected devices by millions.