Immutable X: The Cornerstone of Security and Privacy for Ethereum L2
Immutable X is an Ethereum-based Layer 2 (L2) scaling solution specifically designed for NFTs, aiming to address the high Gas fees and transaction speed limitations of the Ethereum mainnet. By leveraging zero-knowledge technology, particularly StarkWare's StarkEx framework, it achieves large-scale expansion of NFT transactions while ensuring asset and transaction security and implementing a clear strategy for user data privacy.
Inheriting Ethereum Security and Zero-Knowledge Proofs
Immutable X's core security mechanism lies in its inheritance of Ethereum mainnet security and the application of Zero-Knowledge Validity Proofs. The platform utilizes StarkWare's STARK proving technology to batch off-chain processed transactions and generate concise cryptographic proofs. These proofs are then submitted to the Ethereum mainnet for verification, ensuring the correctness of all state transitions and effectively preventing fraudulent transactions. Even if issues occur at the L2 layer, the ultimate security of assets is guaranteed by the Ethereum mainnet.
Currently, Immutable X is actively evolving towards Immutable zkEVM. This is an Ethereum Virtual Machine (EVM)-compatible chain, also powered by zero-knowledge proofs. This move aims to provide a more developer-friendly environment, allowing them to deploy existing EVM smart contracts and utilize familiar development tools, while maintaining the same level of security as Ethereum.
Data Availability Modes and Their Evolution
In early Immutable X deployments, the platform adopted StarkEx's Validium mode, an off-chain data availability solution designed to further enhance performance. In Validium mode, data such as user balances are not directly published on the Ethereum mainnet but are instead held by an external trusted party—the Data Availability Committee (DAC). Members of this committee include Immutable, StarkWare, Deversifi, Consensys, Nethermind, Iqlusion, Infura, and Cephalopod. The DAC's responsibility is to sign each batch, certifying that they have retained a copy of the data. While Validium mode offers higher throughput and lower costs, it also implies that if DAC members fail to fulfill their duties, leading to data unavailability, there is a theoretical risk of fund loss.
With the launch of Immutable zkEVM, the platform will gradually adopt a Rollup-style data availability mode. Unlike Validium, Rollup mode publishes all transaction data to the Ethereum mainnet, thereby providing higher data availability guarantees and further enhancing the security of user assets.
Data Privacy Policy and Retention Strategy
Immutable places a high priority on user data privacy, with its privacy policy last updated on May 15, 2026. This policy details how personal information is collected, used, and disclosed, and strictly adheres to Australia's Privacy Act 1988 and the Australian Privacy Principles. At the same time, Immutable also fully considers the GDPR (General Data Protection Regulation) requirements for the EU and UK, as well as privacy laws in specific US jurisdictions, aiming to provide comprehensive privacy protection for global users.
It is worth noting that even after a user requests data deletion or erasure, Immutable may still retain certain information based on legitimate interests. This includes wallet addresses, transaction hashes, device identifiers, and related behavioral signals, primarily to maintain the security and integrity of the ecosystem and effectively prevent fraud, bot attacks, and Sybil attacks. This data retention strategy is a balance between the inherent nature of blockchain technology and the platform's anti-fraud needs.
Immutable Passport and User Experience
To enhance the user experience for Web3 games, Immutable has launched Immutable Passport. This is a universal wallet designed for gaming, offering a gas-free experience and a single sign-on identity. Immutable Passport aims to provide a seamless user experience for mainstream gamers without sacrificing security. It supports email and social media-based authentication processes, significantly lowering the barrier to entry for Web3 games, as players do not need to directly manage complex seed phrases, thereby reducing security risks associated with lost or compromised seed phrases.
The Governance and Security Role of IMX Token
IMX is the native ERC-20 utility token of the Immutable ecosystem, with a total supply of 2 billion tokens. It plays multiple roles within the ecosystem, including paying protocol fees (20% of protocol fees are paid in IMX), staking, and governance. IMX token holders can participate in governance proposals by voting, for example, deciding on the allocation of token reserves, developer grants, and changes in token supply. This decentralized governance mechanism allows the community to collectively participate in the platform's development and the formulation of security strategies, further enhancing the ecosystem's resilience.
Where to Trade IMX
IMX tokens can be traded on multiple platforms that support digital currency trading. As of this writing, IMX is available for trading on exchanges including Binance, OKX, Coinbase Exchange, Bybit, HTX, Gate, Phemex, Poloniex, BitDelta, Hotcoin, CoinW, GroveX, Bitazza, BTCC, and LBank.
