As influencer marketing has increased in popularity from brands looking to do more "authentic" marketing, it's come with its share of issues. Fraud is rampant, and it's hard to measure the success of content because traditional metrics don't apply. Joseph Harper, social media lead UK and Ireland at Kelloggs, discussed the up and downs of influencer marketing, compliance issues and more in this session from the Digiday Brand Summit Europe held in November 2018.