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5 Stars for sale: Inside the underground fake review trade

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Underground cybercrime forums sell reputation manipulation as an on-demand service: operators offer to post five-star reviews across platforms such as Google, Trustpilot, Yelp, and app stores, or to remove negative feedback. One seller claims reviews are posted manually and guaranteed to remain online, while another says a secret method helped it publish more than 10,000 fake reviews. “Manual” does not mean reviewers are actual customers. Removing a review typically costs $100-$200, but one seller advertised Airbnb review removal for about $1,100. Such services may target legitimate complaints as well as fabricated ones, obscuring recurring problems with products, refunds, or customer service.

Researchers also found forum users discussing AI-generated reviews designed to imitate the qualities of experience, expertise, authority, and trustworthiness, and to improve search visibility. Sellers can use residential and mobile proxies - traffic routed through home internet or cellular connections - to make campaigns appear to come from ordinary consumers rather than data centers. These techniques make fake feedback harder to identify and potentially easier to produce at scale. To judge reviews, shoppers should look beyond overall star ratings: read recent and middling reviews, watch for repeated wording or sudden bursts of praise, and check seller contact details and return policies. Suspicious patterns are warning signs, not proof that a review is fake.

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