How Rogue ISPs Tamper With Geofeeds

Precise geolocation information for IP addresses has emerged from a niche requirement to a ubiquitous demand. While the country an IP address is (allegedly) related to has long been used for applications such as network traffic distribution and coarse geoblocking, today, state-, city- and sometimes even district-level geolocation information is crucial for modern security measures, such as fraud detection. Data brokers, advertisers, defenders, and investigators alike are interested in having precise and up-to-date information on the physical location of an …

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