Square

  • Points – $15,000 per vulnerability

Program stats

  • Vulnerabilities rewarded 262
  • Validation within 11 days 75% of submissions are accepted or rejected within 11 days
  • Average payout $1,544.11 within the last 3 months

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Block, Inc.

This program is part of Block, Inc. You can participate in our other bug bounty programs below.

Cash App
Square Open Source

Serious about security

Our approach to security is designed to protect buyers and sellers. We monitor every transaction, continuously innovate in fraud prevention, and we protect businesses’ data like our business depends on it—because it does. We adhere to industry-leading standards to manage our network, secure our web and client applications, and set policies across our organization.


This program adheres to the Bugcrowd Vulnerability Rating Taxonomy for the prioritization/rating of findings.

Rewards:

We are particularly interested in problems with Square’s payment flows. Confirmed vulnerabilities that directly affect our payments flows and comply with these terms will receive a $500 minimum reward.

A Note on Similar Submissions:
We ask that researchers who are able to identify the same or similar types of issues in multiple locations across one of our applications combine those findings into a single submission that includes a description as well as the various locations where vulnerabilities have been identified. This greatly assists us in our triage process and allows us to process your submissions faster. The combined submissions will be evaluated holistically and will receive rewards corresponding to the collective findings. For example, if an application is discovered to have broken access control on a number of API endpoints, please submit a single submission that includes a list of those API endpoints. If separate submissions are made, they may be inadvertently closed as duplicates.

Scope and rewards

Program rules

This program follows Bugcrowd’s standard disclosure terms.

For any testing issues (such as broken credentials, inaccessible application, or Bugcrowd Ninja email problems), please email support@bugcrowd.com. We will address your issue as soon as possible.

This program does not offer financial or point-based rewards for P5 — Informational findings. Learn more about Bugcrowd’s VRT.