Program Overview
Malwarebytes runs a bug bounty program on HackerOne. The program has 37 in-scope assets and is managed by HackerOne's triage team.
37
In-Scope Assets
2d
Avg Response
73%
Efficiency
100d
Avg Bounty Time
In-Scope Assets
| Asset | Type | Max Severity | Eligible |
|---|---|---|---|
| *.cloud.malwarebytes.com | WILDCARD | Critical | Bounty |
| *.cyrus-security.com | WILDCARD | Critical | Bounty |
| *.malwarebytes.com | WILDCARD | Critical | Bounty |
| *.mb-cosmos.com | WILDCARD | Critical | Bounty |
| *.mbamupdates.com | WILDCARD | Critical | Bounty |
| *.mwb-threatintel.com | WILDCARD | Critical | Bounty |
| *.mwbsys.com | WILDCARD | Critical | Bounty |
| *.threatdown.com | WILDCARD | Critical | Bounty |
| AdwCleaner | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| Any other Malwarebytes and ThreatDown asset | OTHER | Critical | Bounty |
| BrowserGuard (Firefox/Chrome/Safari browser extension) | OTHER | Critical | Bounty |
| Malwarebytes Anti-Exploit | DOWNLOADABLE_EXECUTABLES | Medium | No Bounty |
| Malwarebytes Privacy (VPN) | OTHER | Medium | Bounty |
| Malwarebytes Remediation for CrowdStrike | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| Malwarebytes Support Tool (MBST) | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| Malwarebytes ToolSet (MBTS) | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| Malwarebytes Windows Firewall Control | DOWNLOADABLE_EXECUTABLES | Medium | Bounty |
| Malwarebytes for Mac | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| Malwarebytes for Teams | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| Malwarebytes for Windows | DOWNLOADABLE_EXECUTABLES | Critical | Bounty |
| ThreatDown Browser Phishing Protection | OTHER | Critical | Bounty |
| ThreatDown Device Control | OTHER | Critical | Bounty |
| ThreatDown Endpoint Detection & Response (EDR) | OTHER | Critical | Bounty |
| ThreatDown Endpoint Protection | OTHER | Critical | Bounty |
| ThreatDown Patch Management | OTHER | Critical | Bounty |
| USB Flash Drive Control | DOWNLOADABLE_EXECUTABLES | Medium | No Bounty |
| blog.malwarebytes.com | URL | Critical | No Bounty |
| cloud.malwarebytes.com | URL | Critical | Bounty |
| cloud.threatdown.com | URL | Critical | Bounty |
| com.malwarebytes.Malwarebytes | APPLE_STORE_APP_ID | Critical | Bounty |
| forums.malwarebytes.com | URL | Critical | No Bounty |
| https://oneview.threatdownstage.com | URL | Critical | Bounty |
| my.malwarebytes.com | URL | Critical | Bounty |
| oneview.threatdown.com | URL | Critical | Bounty |
| org.malwarebytes.antimalware | GOOGLE_PLAY_APP_ID | Critical | Bounty |
| support.malwarebytes.com | URL | Critical | No Bounty |
| www.malwarebytes.com | URL | Critical | Bounty |
Out-of-Scope Assets
- Malwarebytes Anti-Ransomware
- estore.malwarebytes.com
- malwarebytes.zoom.us
- pages.malwarebytes.com
- store.malwarebytes.com
- store.threatdown.com
- view.malwarebytes.com
Tips for Hacking Malwarebytes
- Read the policy — Understand what's in scope, out of scope, and any specific testing restrictions before you start.
- Enumerate the attack surface — Use subdomain enumeration and directory bruteforcing to map all accessible endpoints.
- Focus on high-impact bugs — Look for SQL injection, SSRF, and IDOR vulnerabilities first.
- Test authentication flows — Check for OAuth misconfigurations and CSRF in login/signup flows.
- Write clear reports — Include steps to reproduce, impact assessment, and suggested remediation. Use Burp Suite to capture evidence.
Frequently Asked Questions
How do I start hacking Malwarebytes?
Sign up on HackerOne, read the program policy carefully, review the in-scope assets listed above, and start testing. Always stay within scope and follow responsible disclosure guidelines.
Does Malwarebytes pay bounties?
Yes, Malwarebytes offers monetary rewards for valid security vulnerabilities.
What types of vulnerabilities does Malwarebytes accept?
Malwarebytes accepts reports for vulnerabilities found in their 37 in-scope assets. Common accepted vulnerability types include XSS, SQL injection, SSRF, IDOR, authentication bypass, and RCE. Check the program policy for specific exclusions.