Coinbase Smart Wallet

Exposure clusters on cross-chain signature replay + 1-of-N ownership. Defense-depth improves with multi-sig or passkey policies.

TVL

$40.0M

30-day Δ

-6

Last scored

2026-04-19

BlackHart Risk Index

741

B-

Scale: 300 — 1000

01 //

Category Breakdown

What drives this score.

The score aggregates six independent assessments of the deployed code. Each category below carries a rationale derived from the current state of the protocol.

Access Control

60 / 100

1-of-N ownership is fast but broad

Economic Integrity

61 / 100

Multi-owner, multi-chain, upgrade-replayable

External Dependencies

90 / 100

No direct oracle usage

Upgradeability & Governance

56 / 100

Owner-controlled; no timelock

Composition Exposure

64 / 100

SpendPermissionManager integration surface

Systemic Impact

70 / 100

Per-user blast radius

03 //

Transparency

Score provenance

Slug: coinbase-smart-wallet
Last updated: 2026-04-19
Chain: Multi-chain
Outlook: Declining

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Public scores summarize. A BlackHart engagement delivers the private finding detail, fork-validated PoCs, and remediation guidance that the score cannot publish.