“Going Undercover in a 100,000-Person Doxxing Group: Observing the Thin Line Between Ordinary People and Evil”

Operate underground internet businesses by leveraging expired but still-valid personal data—such as phone numbers, ID numbers, and addresses, which tend to remain accurate over time—to offer free lookups for traffic generation, then gradually upsell paid query services. Additionally, bundle these with various paid services like SMS/phone轰炸 campaigns. Data breaches have become a business model; any valuable data is fair game.

https://mp.weixin.qq.com/s/Hq__n8eZAb8QJoqZKvTWwA