Web vulnerabilities are not always necessary to abuse a system for financial gains. A Romanian ex-greyhat hacker turned security researcher, who goes by the nickname Tinkode, recently described a method to make money by exploiting loopholes in PayPal’s chargeback feature. Chargeback allows the reversal of a PayPal transaction and can be initiated by users in several cases: non-arrival of the purchased item, the product being significantly different than advertised, or unauthorized usage of th…
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