The industry taxonomy for fraud too complex for simple filters to catch. General invalid traffic (GIVT) gets caught by lists: known data centers, declared bots, crawlers. SIVT is the deliberate stuff. Hijacked devices, botnets, residential proxies, spoofed apps, falsified viewability. Catching it takes behavioral analysis across multiple signals. If your verification report shows one IVT number, ask how much of it is sophisticated.
Ad tech glossary
SIVT (Sophisticated Invalid Traffic)
Technical definition
Invalid traffic that requires advanced analytics, multi-point corroboration or significant human intervention to detect, as defined in the MRC's Invalid Traffic Detection and Filtration Guidelines.
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