• $200 – $5,000 per vulnerability
  • Up to $15,000 maximum reward

Program stats

  • Vulnerabilities rewarded 57
  • Validation within 3 days 75% of submissions are accepted or rejected within 3 days
  • Average payout $750 within the last 3 months

Latest hall of famers

Recently joined this program

No technology is perfect and Backblaze believes that working with skilled security researchers across the globe is crucial in identifying weaknesses in any technology. We are excited for you to participate as a security researcher to help us identify vulnerabilities in our assets. Good luck, and happy hunting!


Please note: This program does not allow disclosure at any time, even after you leave the program. You may not release information about vulnerabilities found in this program to the public or anyone other than Backblaze. Any offender of this non-disclosure policy shall be removed from the program, shall repay any rewards payment to Backblaze, and shall be subject to the Bugcrowd policies and guidelines on Bugcrowd’s sites, including but not limited to the Bugcrowd Code of Conduct. This does not constitute a waiver of any rights Backblaze may otherwise have under applicable laws.


For the initial prioritization/rating of findings, this program will use the Bugcrowd Vulnerability Rating Taxonomy. However, it is important to note that in some cases a vulnerability priority will be modified due to its likelihood or impact. In any instance where an issue is downgraded, a full, detailed explanation will be provided to the researcher - along with the opportunity to appeal, and make a case for a higher priority.

Special Rewards & Bonuses ($15k Reward)

Backblaze is offering a special $15k reward for any researcher that is able to

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 submit through the Bugcrowd Support Portal. 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.