bug bounty directory
USPS - United States Postal Service bug bounty program
HackerOne 17 in-scope assets managed
USPS - United States Postal Service runs a public vulnerability disclosure program hosted on HackerOne. The program currently lists 17 in-scope assets that authorised security researchers may test under the program's rules. It accepts vulnerability reports for recognition rather than advertising cash bounties.
// example in-scope assets
gateway.usps.comhttps://about.usps.com/what/government-services/election-mail/https://holdmail.usps.com/holdmail/https://redelivery.usps.com/redelivery/Always read the official policy before testing — scope, exclusions and safe-harbor terms are set by the program, and testing outside the authorised scope is not permitted. New to bug bounty? Warm up in our free hands-on labs and academy first.
// more HackerOne programs
// data aggregated from public HackerOne listings · refreshed 8/25/2026 · the official program page is authoritative