Walmart's online marketplace has surged in popularity, but a recent CNBC investigation highlights serious issues with counterfeit products stemming from lax vetting of third-party sellers. The investigation found that many sellers impersonated legitimate businesses, leading to the sale of potentially harmful health and beauty products. Walmart's efforts to compete with Amazon resulted in a more lenient seller approval process, which has raised alarms among consumers and industry experts. Despite Walmart's assurances of a zero-tolerance policy for counterfeit goods, the investigation revealed numerous instances of fraud, prompting calls for stricter oversight. As Walmart's digital sales grow, the company faces increasing scrutiny over its marketplace practices and the safety of the products sold on its platform.