This study investigates the impact of perceived risk, perceived deception, and negative emotional factors on consumer distrust, dissatisfaction, and boycott intentions towards both YouTubers and products that fail to adequately disclose paid advertisements, commonly referred to as "hidden advertisement." Conducted through an online survey, 306 YouTube viewers from South Korea participated in the study. The findings reveal several key insights. Firstly, perceived deception, perceived risk, and negative emotional factors are identified as contributors to increased consumer distrust and dissatisfaction. Secondly, both consumer distrust and dissatisfaction exhibit positive correlations with boycott intentions towards YouTubers and products. This research seeks to unravel the intricacies of online consumer boycott intentions and aims to elucidate the underlying reasons behind such actions. It is noteworthy that in this context, the ramifications of boycotts extend beyond influencers or YouTubers alone, impacting consumer distrust and dissatisfaction, thereby influencing boycott intentions towards the associated products and exerting a lasting impact on a company's branding efforts.