Parameter

[ HackerOne alternative ]

Get proven findings,not submissions to triage.

AI agents that find vulnerabilities in your web apps, APIs, and infrastructure. Proven and ready to fix, not submitted for triage.

See first findings in 24 hours

24h

to first findings

<1%

false positives

24/7

testing, no test window

Built by the team that secured:

Apple
Google
Microsoft
U.S. Department of Defense
T-Mobile
Henkel
Epic Games
AT&T
Yahoo

[ side by side ]

Where HackerOne and Parameterdiffer.

HackerOne's own homepage says 25% of findings are actionable. Parameter reports only what it has exploited, inline on the pull request.

HackerOne

Submissions to triage

Parameter

Proof, ready to fix

Findings arrive as

Covers

HackerOne

AppsAPIsCloudCodeDependencies

Parameter

AppsAPIsCloudCodeDependencies

Who tests

HackerOne

Researchers; vetted testers; AI with review

Parameter

Autonomous agents

Cadence

HackerOne

When researchers engage; pentests in 4 to 7 days

Parameter

Every release

Accuracy

HackerOne

Validation at 95% accuracy; 25% of submissions actionable

Parameter

Exploited first; under 1% FP

Triage

HackerOne

Expert testers and triage team

Parameter

None needed; findings arrive proven

Code

HackerOne

H1 Code: SAST and SCA, human escalation

Parameter

Sentinel exploits what it flags

Dependencies

HackerOne

SCA

Parameter

Reachability-scored

Cloud

HackerOne

AWS and Azure engagements

Parameter

AWS, GCP, Azure, with Terraform fix

Findings land

HackerOne

Platform, Jira, GitHub, Linear

Parameter

Inline on the pull request

Pricing

HackerOne

Bounties by severity; pentests quoted

Parameter

Annual, per environment

HackerOne details checked against its own site on 6 September 2026.

Not sure which fits? Tell us what you are shipping and we will scope the test in minutes.

[ how it works ]

Continuous pentestingin three steps.

[ coverage ]

One platform,every layer of your stack.

A bounty program covers the public surface researchers can reach. The agents cover the stack, including what is private.

Web apps and APIs

Authentication, authorization, and business logic on the running application, tested as different users. Findings scanners cannot reason about: skipped steps, swapped identifiers, replayed requests.

Every pull request

An AI reviewer on GitHub, GitLab, or Bitbucket flags exploitable issues as inline comments before the code is merged. The agents review more than 10,000 pull requests a day.

Cloud infrastructure

Misconfigured buckets, permissive IAM, and exposed services across AWS, Google Cloud, and Azure, with attack paths traced to your data and a Terraform fix for each.

Dependencies and secrets

Vulnerable packages flagged only when your code reaches the vulnerable path, and leaked keys caught in commits and git history before they ship.

[ definition ]

Why teams look for a HackerOne alternative

A researcher program brings outside eyes to the surface they can reach, when they choose to look, and a triage team to sort what they send. Parameter's agents test the whole stack on every release, private code and cloud included, prove each finding with a working exploit before it reaches you, and cost the same whether they find one issue or fifty.

[ FAQ ]

Frequently asked questionsabout hackerone alternative

Start testing today.

A URL and credentials is all it takes.

First findings land within 24 hours.