Hero Hacker Saves 438,000 Credit Cards from USPS Smishing Scam
Security researcher Grant Smith hacked into scammers’ systems to halt a large-scale smishing scam posing as the USPS. His efforts protected over 438,000 unique credit cards from fraud, showcasing the mass scale of the problem.

Hot Take:
Who knew the USPS needed a cybersecurity expert to deliver the package of justice? Apparently, when Grant Smith isn’t tracking down bad guys, he’s moonlighting as Santa Claus, saving Christmas one credit card at a time!
Key Points:
- Security researcher Grant Smith uncovered a massive smishing scam involving fake USPS package delivery notifications.
- Smith hacked the scammers’ systems, gathering data and evidence on their activities.
- He collaborated with USPS and a US bank to protect over 438,000 unique credit cards from fraud.
- The campaign involved 1,133 domains and collected over 1.2 million pieces of information.
- Smith will present his findings at the Defcon security conference.
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