Bug bounty program
Costco
- Platform
- HackerOne
- Bounties
- None
- Assets in scope
- 14
- Disclosed reports
- 0
- Subdomains
- 2,511
Most upvoted reports0
No report of this program is publicly disclosed
Subdomains2,511
| Name | Scope | First seen |
|---|---|---|
| signin.costco.caauth | In scope | 2026-11-14 |
| signin-qa.costco.caauth, test | In scope | 2026-11-14 |
| signin-qaui.costco.caauth | In scope | 2026-11-14 |
| signin-spt.costco.caauth | In scope | 2026-11-14 |
| signin-sptui.costco.caauth | In scope | 2026-11-14 |
| signin-ui.costco.caauth | In scope | 2026-11-14 |
| auth.costco.comauth | In scope | 2026-11-14 |
| compshop-idp.costco.comauth | In scope | 2026-11-14 |
| compshop-idp-adt.costco.comauth | In scope | 2026-11-14 |
| compshop-idp-qat.costco.comauth | In scope | 2026-11-14 |
| compshop-idp-spt.costco.comauth | In scope | 2026-11-14 |
| compshop-idp-uat.costco.comauth, test | In scope | 2026-11-14 |
| cas00099p01.corp.costco.comauth, internal | In scope | 2026-11-14 |
| identity.costco.comauth | In scope | 2026-11-14 |
| login.costco.comauth | In scope | 2026-11-14 |
| prf-signin.costco.comauth | In scope | 2026-11-14 |
| sbx-signin.costco.comauth, test | In scope | 2026-11-14 |
| securefilec-sso.costco.comauth | In scope | 2026-11-14 |
| securefileqac-sso.costco.comauth | In scope | 2026-11-14 |
| signin.costco.comauth | Listed out of scope | 2026-11-14 |
| signin-api.costco.comapi, auth | In scope | 2026-11-14 |
| signin-intl.costco.comauth | In scope | 2026-11-14 |
| signin-intl-npd.costco.comauth | In scope | 2026-11-14 |
| signin-intl-prd.costco.comauth | In scope | 2026-11-14 |
| signin-perfapi.costco.comauth | In scope | 2026-11-14 |
| signin-qa.costco.comauth, test | In scope | 2026-11-14 |
| signin-qaapi.costco.comauth | In scope | 2026-11-14 |
| signin-qaui.costco.comauth | In scope | 2026-11-14 |
| signin-spt.costco.comauth | In scope | 2026-11-14 |
| signin-sptapi.costco.comauth | In scope | 2026-11-14 |
| signin-sptui.costco.comauth | In scope | 2026-11-14 |
| signin-ui.costco.comauth | In scope | 2026-11-14 |
| stg-signin.costco.comauth, staging | In scope | 2026-11-14 |
| stg-signin-api.costco.comapi, auth, staging | In scope | 2026-11-14 |
| stg-signin-ui.costco.comauth, staging | In scope | 2026-11-14 |
| tst-signin.costco.comauth | In scope | 2026-11-14 |
2,510 names are covered by the program's own scope; 0 were first seen this week. Names come from ProjectDiscovery's public Chaos dataset (passive sources: certificate logs, DNS and other public data), matched to the program by its listing and its own domain scope. A name being in a dataset is not permission to test it: only what the program's own scope says is in scope, and its policy decides. CyberSIXT does not resolve, probe or scan these names. Tags come from the name alone. Source: ProjectDiscovery Chaos. Subdomains on the Atlas, or search the subdomains of every program.
A name in a dataset is not permission to test it: the program's own scope and rules decide. Data as of 2026-11-15.