Starknet has launched Shadow Accounts, a new privacy tool that enables users to engage with decentralized finance applications through separate addresses without publicly connecting that activity to their primary wallets.

Developed by StarkWare, the team behind the Ethereum layer-2 network, the feature creates independent, persistent pseudonymous addresses tailored to individual applications. Users fund these accounts from shielded balances held in the network’s STRK20 privacy pool. This setup allows participants to maintain lending, trading or other DeFi positions under distinct onchain identities.

How Shadow Accounts Operate

Once a DeFi application integrates the feature, users connect their wallets, switch from public to private mode and deposit assets into a vault-style structure. The Shadow Account then holds and manages the resulting positions across multiple interactions. When users withdraw, funds can return to a shielded balance, preserving the privacy boundary at entry and exit points.

Each Shadow Account is derived from details tied to the user, the specific application and a nonce identifier. This design supports stable, returning identities for ongoing positions such as lending or liquidity provision. Users can generate multiple accounts for the same application if they wish to separate different strategies within one service.

Shadow Accounts differ from ordinary wallets. They hold no signing keys and can only be operated through a dedicated contract known as the ShadowAccountAnonymizer. Applications interact with them via standard calls managed by supporting wallets and the Starknet Wallet API.

Limits of the Privacy Protection

The system does not conceal the contents of Shadow Accounts. Balances, transaction histories and protocol positions stay fully visible on the blockchain and accessible through explorers. What remains confidential is the connection between the shadow address and the user’s main funding wallet, as well as links across different applications.

This approach addresses a common issue in DeFi where repeated use of a single public address allows third parties to map activity patterns, holdings and strategies. By isolating identities per application, Shadow Accounts reduce the ease of correlating a user’s broader onchain footprint.

Part of a Wider Privacy Effort

The launch builds on StarkWare’s earlier privacy initiatives. In June, the company introduced the STRK20 framework, which supports private transfers and shielded token balances on Starknet. Later that month, it demonstrated a Private Know Your Customer system that lets users verify personal information without exposing full identity documents.

StarkWare indicated that Shadow Accounts could expand beyond initial vault integrations to cover liquidity provision, lending and borrowing, staking, derivatives trading, prediction markets and NFT marketplaces. The first application integration was scheduled shortly after the October 13 announcement, with an educational mainnet demonstration involving Vesu’s Prime STRK vault.

Wallet support from providers such as Argent X and Braavos, along with broader developer adoption through the Starknet.js library and Wallet API, will determine how quickly the feature reaches everyday users. No specific adoption targets or timelines for additional integrations have been disclosed.

Shadow Accounts represent a targeted step in Starknet’s privacy development, focusing on unlinkability of funding sources while preserving the public verifiability of DeFi positions and transactions.