In brief. Horizen is a bug bounty program on Immunefi. 5 assets are listed in scope, 5 of them bounty-eligible. As of Aug 20, 2026. Markdown for agents

NR Unrated

Horizen

Horizen Immunefi

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Program page immunefi.com ↗

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Program profile Immunefi, imported

Immunefi published these facts on the program's page. Researchers did not report them, and they don't count toward the BugRater grade. Last checked 4 Nov 2026.

Submissions

Open

Launched

Jul 2026

Scope

5 assets

Asset	Type	Eligibility	Max severity
https://github.com/HorizenOfficial/staker	SOURCE CODE	✓ bounty	not set
https://github.com/HorizenOfficial/staker-services	SOURCE CODE	✓ bounty	not set
https://horizen-testnet.explorer.caldera.xyz/address/0x06f5555fee73EDdc385b6d76FE00DB2D96ccDaE8	SMART CONTRACT	✓ bounty	not set
https://horizen-testnet.explorer.caldera.xyz/address/0x6BF7CF29a8bcE11Aa62Cf593d165C244fA4d3E31	SMART CONTRACT	✓ bounty	not set
https://staking-testnet.horizen.io/	URL	✓ bounty	not set