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This page describes how control is distributed between you and Ground when using Portfolio Wallets.

Independent security review

Ground’s smart contracts completed an independent Quantstamp review in April 2026, followed by a June 2026 fix review. Quantstamp’s final report states that all reported issues were resolved correctly and that the remaining notes are defense-in-depth, consistency, and clarity improvements rather than open vulnerabilities.

Quantstamp Final Report

Review period: Apr 6, 2026 - Apr 17, 2026. Final report: Jun 23, 2026.
Audit reports are point-in-time reviews. The Quantstamp report applies to the code, commit, and scope listed in the report.
See Contract Addresses for current production deployment references.

Key custody model

  • Deposit addresses are provisioned and managed by Ground.
  • Strategy updates and withdrawals require customer approval through Turnkey.
  • Each customer organization has a dedicated Turnkey sub-organization used for approvals.

Wallet type per chain

Ground provides chain-native deposit addresses per supported chain. Treat them as standard addresses for funding and withdrawals. The exact address format follows the chain (for example, EVM vs Solana).

Address uniqueness and reuse

  • Each wallet receives dedicated deposit addresses per chain.
  • Addresses are not reused across customers.
  • If you see the same EVM address across multiple EVM chains for a single wallet, that is expected and still scoped to that wallet.

What this means for your integration

  • Always send funds to the deposit address returned for the specific wallet and chain.
  • Never reuse deposit addresses across wallets.
  • Rely on the API or webhooks to reconcile balances and allocations.