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Grayback
Grayback

Findthebugbeforeattackersdo.

Grayback connects your organization with a community of verified hackers to discover and fix real vulnerabilities before they can be exploited by malicious actors..

0+
vulnerabilities reported
0+
vetted hunters
< 24h
median triage

Trusted by

  • Hacken
  • The Fisio Clinic
  • Hora Jaen
  • Mapulim
  • Vulnit
  • Cyberbrainers
  • Lirio
  • Cervantes
  • The Hackers Labs
  • Hagalink
  • Hacken
  • The Fisio Clinic
  • Hora Jaen
  • Mapulim
  • Vulnit
  • Cyberbrainers
  • Lirio
  • Cervantes
  • The Hackers Labs
  • Hagalink

Rewards for Finding Bugs

A single entry point to find, prioritize and fix real vulnerabilities.

Bug Bounty

Continuous programs

Vetted hunters test your assets around the clock. You pay for impact, not for hours.

VDP

Responsible disclosure

A safe channel for anyone to report security flaws before they get exploited by a third party acting in bad faith.

Pentest

Pentest on demand

Scoped audits with clear deliverables when you need depth and a formal report.

Triage

Signal, not noise

We validate and prioritize every report. Your team only sees real, actionable vulnerabilities.

Grayback in action

A quick look at how we find and fix real vulnerabilities.

Grayback · Demo

From first test to fix

Every report's journey, from detection to reward: a traceable cycle with expert triage at each step.

Phase 1

Submitted

The bug hunter reports the vulnerability through Grayback. The finding is logged with a unique identifier and a timestamp.

Phase 2

In triage

Grayback reviews the scope, impact, report quality and initial reproducibility. Clarifications may be requested, or false positives and out-of-scope reports discarded.

Phase 3

Validated

The vulnerability is reproduced and technically confirmed. The flaw type is classified and the final severity is assigned.

Phase 4

Accepted

The company officially acknowledges the finding, confirms the severity and commits to resolving it.

Phase 5

Reward approved

The reward or recognition tied to the report is determined and approved, pending payment or delivery.

500+vulnerabilities reported
450+vetted hunters
< 24haverage triage time
98%valid reports after triage

The questions everyone asks.

The essentials of how Grayback operates. If yours isn't here, drop us a line: we reply in hours, not days.

Available now

Let's talk about your next security move.

Ask for information, a demo, or a quote. We reply within one business day. No sales pressure, no endless forms — just a conversation.

  • NDA available on request

    We sign an NDA before getting into details. Your info stays with you.

  • Reply from the tech team

    Whoever answers actually understands security — not a salesperson.

  • Zero commitment

    Just sound us out. If Grayback isn't the right fit, we'll tell you.

Are you a company?

Talk to our team about a program for your organization. Go to the companies form

Let's get to work