Meta terminology
IIC
Inappropriate Interactions with Children
A classifier threshold and content category for interactions between adults and children indicative of grooming or exploitation, referred to internally as "a.k.a. 'grooming'". The source document puts the scale at "~500k victims per DAY in English markets only", three times Messenger's prevalence, while calling it "a preliminary metric" and adding "we expect the true situation is worse".
Sources
Internal documentUnsealed internal emails ("Re: IIC on Instagram")
Internal documentFinancial Sextortion in Instagram Direct
Internal documentIG IIC Prevalence Analysis - a/c privUndated