Nautilus Launches Tamper-Proof Oracles on Sui Blockchain

Estimated reading time: 4 minutes

• Nautilus has introduced a tamper-resistant oracle solution on the Sui Mainnet aimed at enhancing security.
• The oracle framework is designed to counter vulnerabilities seen in decentralized applications relying on offchain data.
• The solution utilizes Trusted Execution Environments and cryptographic verification for secure computations.
• Nautilus aims to support various decentralized applications, including exchanges and NFT projects, by providing reliable data feeds.
• This launch is a response to a recent exploit that highlighted weaknesses in the Sui ecosystem’s oracle implementations.

Nautilus has launched a tamper-resistant oracle solution on the Sui Mainnet as of June 6, 2025[1]. This release comes after recent security incidents within the Sui ecosystem and is aimed at improving blockchain security and data integrity[2].

The Nautilus oracle framework seeks to address the challenges decentralized applications face when relying on offchain data, such as price feeds and dynamic NFTs. In the past, unverifiable offchain computation created vulnerabilities in DeFi protocols and other Web3 applications, leaving them exposed to manipulation and hacks[2]. The Nautilus system introduces an oracle structure that provides cryptographically verifiable and trustworthy offchain computations, comparable to onchain operations[3].

Nautilus’s approach uses Trusted Execution Environments (TEEs), initially with AWS Nitro Enclaves, to create a secure space for data processing. Developers can write code for various oracle functions, such as retrieving market prices or weather updates, and deploy this code within a Nitro Enclave using the Nautilus platform. Integrity measurements and public keys from each enclave are recorded directly on the Sui blockchain through Move smart contracts, allowing observers to verify computations independently[4].

During operation, the enclave fetches offchain data, executes the specified logic, produces a signed output, and submits this information onchain. The Sui blockchain then employs a Move contract to confirm the authenticity of the data before any changes are made to the system’s state[4]. This method aims to remove single points of vulnerability found in earlier oracle implementations.

The introduction of tamper-proof oracles by Nautilus is expected to support new decentralized applications. Decentralized exchanges are able to access reliable price feeds, reducing potential for manipulation[5]. Social and prediction platforms may use verifiable reputation systems, and NFT projects can issue onchain rewards based on weather or geolocation data. Additionally, the system supports secure processes that can link verified offchain events, such as social media activities, to asset movements on the blockchain[5].

Nautilus’s deployment comes shortly after a $220 million exploit targeted the Cetus decentralized exchange on May 22, 2025[6]. Attackers in that incident manipulated Sui’s oracles by introducing spoof tokens, which distorted automated market maker pricing and led to major liquidity pool losses[7]. The event resulted in significant token value drops, with some Sui-based tokens losing up to 81%[8]. This prompted renewed scrutiny over oracle and validator security within the network. Nautilus offers verifiable computation and cryptographic proofs, aiming to address vulnerabilities highlighted by the Cetus incident[9].

The release of Nautilus oracles is also relevant to the broader blockchain infrastructure landscape. The system’s approach to tamper-resistant data aims to increase transparency and reliability for complex decentralized applications that need trustworthy external information[10]. By relying on technical safeguards rather than individual data providers, Nautilus seeks to support Sui’s focus on secure infrastructure development[11].

In summary, as decentralized finance and Web3 applications grow, advancements such as the Nautilus oracle system are expected to play a key role in maintaining the security and resilience of blockchain platforms against emerging threats.

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1. https://blockchain.news/news/nautilus-launches-tamper-proof-oracles-sui-mainnet
2. https://blockchain.news/news/nautilus-launches-tamper-proof-oracles-sui-mainnet
3. https://blog.sui.io/nautilus-tamper-proof-oracles/
4. https://blog.sui.io/nautilus-tamper-proof-oracles/
5. https://blockchain.news/news/nautilus-launches-tamper-proof-oracles-sui-mainnet
6. https://cryptorank.io/news/feed/82c38-220-m-sui-cetus-hack-sparks-oracle-and-validator-debate
7. https://cryptorank.io/news/feed/82c38-220-m-sui-cetus-hack-sparks-oracle-and-validator-debate
8. https://cryptorank.io/news/feed/82c38-220-m-sui-cetus-hack-sparks-oracle-and-validator-debate
9. https://bloomingbit.io/en/feed/news/89792
10. https://blockchain.news/news/nautilus-launches-tamper-proof-oracles-sui-mainnet
11. https://blog.sui.io