You should audit Sui wallet security by thinking like an attacker and methodically checking every layer: define your threat model (who you protect against — device compromise, phishing, backend leaks, rogue updates), then review key management (ensure seeds/private keys are never logged, use BIP-39 / SLIP standards correctly, enforce strong derivation paths, prefer hardware or secure enclave signing and verify the seed-backup UX), inspect signing flows (show human-readable transaction details before sign, require user confirmation, use deterministic nonces and replay protection, verify canonical serialization matches Sui fullnode expectations), audit on-chain logic and Move interactions (review Move modules you call for invariants, run Move Prover on any high-value contract interactions, and test for reentrancy/logic bugs), and test end-to-end with realistic failure modes (simulate network drops, truncated payloads, malformed transactions, and malicious RPC responses). Check client code quality and dependencies (pin and verify builds, run static analysis, dependency vulnerability scans, reproducible builds, and supply-chain checks), enforce secure CI/CD (signed releases, limited deploy keys, artifact attestations), and run dynamic tests and fuzzing against the wallet code and the node APIs. Validate UX and social engineering defenses (clear phishing-resistant prompts, domain checking, origin binding for dapps, and transaction previews that show amounts, recipients, and gas in plain language). Ensure recovery and incident planning (encrypted backups, key-rotation/migration plans, multisig or guardian patterns for account recovery where appropriate), instrument logging and monitoring for anomalies (unusual signing rates, failed login bursts, or unexpected stake changes), and require formal third-party audits and bug-bounty programs for production wallets plus periodic re-audits after major changes. For mobile/web specifics, use platform best practices: on mobile rely on platform keystores and biometric gating; on web minimize sensitive in-memory lifetimes and use WebAuthn or hardware wallets via standard bridges. Automate tests: unit, integration, and staged mainnet tests on testnets and shadow forks; include scripted red-team runs that try common attack chains. Keep a small, reviewable attack surface (minimal permissions, least privilege for RPCs, short-lived tokens) and document every security decision and migration path so you can explain or roll back changes quickly.

As a developer, you want to think holistically about both on-chain correctness and off-chain security guarantees. Here’s a structured approach: 🔑 Key Areas to Audit in a Sui Wallet

1. Key Management & Cryptography Key storage Ensure private keys / mnemonics are stored securely (hardware enclave, OS keystore, or encrypted at rest). No plaintext storage on disk or in memory longer than necessary. Key derivation Confirm BIP-32/BIP-44 derivation paths for Sui are correctly implemented. Check the HD wallet spec (e.g., m/44'/784'/0'/0'/0 for Sui). Supported schemes Sui supports multiple signature schemes (Ed25519, Secp256k1, Secp256r1). Verify correct algorithm use and no downgrade attacks. Entropy & randomness Validate secure RNG for seed generation.

As a developer, you want to think holistically about both on-chain correctness and off-chain security guarantees. Here’s a structured approach: 🔑 Key Areas to Audit in a Sui Wallet

Key Management & Cryptography Key storage Ensure private keys / mnemonics are stored securely (hardware enclave, OS keystore, or encrypted at rest). No plaintext storage on disk or in memory longer than necessary. Key derivation Confirm BIP-32/BIP-44 derivation paths for Sui are correctly implemented. Check the HD wallet spec (e.g., m/44'/784'/0'/0'/0 for Sui). Supported schemes Sui supports multiple signature schemes (Ed25519, Secp256k1, Secp256r1). Verify correct algorithm use and no downgrade attacks. Entropy & randomness Validate secure RNG for seed generation.