Vulnerability Disclosure Program (VDP)
VDPs are meant for responsibly reporting vulnerabilities you encounter — not for actively hunting for fame or reputation. Even if you're just starting out, consider focusing on rewarded bug bounty programs instead.
costco
14
In Scope
1
Out of Scope
In-Scope Assets (14)
| Asset | Category | Bounty | Quick Links | |
|---|---|---|---|---|
| *.costco.ca | WILDCARD | No | ||
| *.costco.com | WILDCARD | No | ||
| *.costcobusinesscentre.ca | WILDCARD | No | ||
| *.costcobusinessdelivery.com | WILDCARD | No | ||
| *.costcotravel.ca | WILDCARD | No | ||
| *.costcotravel.com | WILDCARD | No | ||
| com.costco.app.android | ANDROID | No | ||
| com.costco.costco | IOS | No | - | |
| www.costco.ca | URL | No | ||
| www.costco.com | URL | No | ||
| www.costcobusinesscentre.ca | URL | No | ||
| www.costcobusinessdelivery.com | URL | No | ||
| www.costcotravel.ca | URL | No | ||
| www.costcotravel.com | URL | No |
Out-of-Scope Assets (1)
| Asset | Category | Bounty | |
|---|---|---|---|
| signin.costco.com | URL | No |
Scope Changes (45)
Feb 25, 2026
| Change | Asset | Category | Scope | Time |
|---|---|---|---|---|
| Added | *.costcobusinesscentre.ca | WILDCARD | In Scope | 19:13 |
| Added | www.costco.com | URL | In Scope | 19:13 |
| Added | www.costcobusinesscentre.ca | URL | In Scope | 19:13 |
| Added | www.costcobusinessdelivery.com | URL | In Scope | 19:13 |
| Added | www.costcotravel.com | URL | In Scope | 19:13 |
| Added | *.costco.com | WILDCARD | In Scope | 19:13 |
| Added | signin.costco.com | URL | Out of Scope | 19:13 |
| Added | www.costco.ca | URL | In Scope | 19:13 |
| Added | com.costco.app.android | ANDROID | In Scope | 19:13 |
| Added | *.costcotravel.ca | WILDCARD | In Scope | 19:13 |
| Added | *.costcobusinessdelivery.com | WILDCARD | In Scope | 19:13 |
| Added | com.costco.costco | IOS | In Scope | 19:13 |
| Added | www.costcotravel.ca | URL | In Scope | 19:13 |
| Added | *.costcotravel.com | WILDCARD | In Scope | 19:13 |
| Added | *.costco.ca | WILDCARD | In Scope | 19:13 |
Feb 22, 2026
| Change | Asset | Category | Scope | Time |
|---|---|---|---|---|
| Added | signin.costco.com | URL | Out of Scope | 00:43 |
| Added | *.costcotravel.ca | WILDCARD | In Scope | 00:43 |
| Added | www.costco.ca | URL | In Scope | 00:43 |
| Added | www.costcobusinessdelivery.com | URL | In Scope | 00:43 |
| Added | com.costco.app.android | ANDROID | In Scope | 00:43 |
| Added | *.costcobusinessdelivery.com | WILDCARD | In Scope | 00:43 |
| Added | com.costco.costco | IOS | In Scope | 00:43 |
| Added | www.costcobusinesscentre.ca | URL | In Scope | 00:43 |
| Added | www.costcotravel.ca | URL | In Scope | 00:43 |
| Added | *.costco.com | WILDCARD | In Scope | 00:43 |
| Added | *.costco.ca | WILDCARD | In Scope | 00:43 |
| Added | www.costco.com | URL | In Scope | 00:43 |
| Added | *.costcotravel.com | WILDCARD | In Scope | 00:43 |
| Added | *.costcobusinesscentre.ca | WILDCARD | In Scope | 00:43 |
| Added | www.costcotravel.com | URL | In Scope | 00:43 |
Feb 21, 2026
| Change | Asset | Category | Scope | Time |
|---|---|---|---|---|
| Added | com.costco.app.android | ANDROID | In Scope | 19:12 |
| Added | *.costcotravel.com | WILDCARD | In Scope | 19:12 |
| Added | *.costcotravel.ca | WILDCARD | In Scope | 19:12 |
| Added | *.costco.com | WILDCARD | In Scope | 19:12 |
| Added | *.costco.ca | WILDCARD | In Scope | 19:12 |
| Added | *.costcobusinessdelivery.com | WILDCARD | In Scope | 19:12 |
| Added | *.costcobusinesscentre.ca | WILDCARD | In Scope | 19:12 |
| Added | com.costco.costco | IOS | In Scope | 19:12 |
| Added | www.costco.ca | URL | In Scope | 19:12 |
| Added | www.costco.com | URL | In Scope | 19:12 |
| Added | www.costcobusinesscentre.ca | URL | In Scope | 19:12 |
| Added | www.costcobusinessdelivery.com | URL | In Scope | 19:12 |
| Added | www.costcotravel.com | URL | In Scope | 19:12 |
| Added | www.costcotravel.ca | URL | In Scope | 19:12 |
| Added | signin.costco.com | URL | Out of Scope | 19:12 |