---
title: "Circle's Arc Blockchain Unveils Post-Quantum Security Roadmap"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/281727994.md"
description: "Circle's Arc blockchain has unveiled a roadmap for post-quantum security, focusing on protecting against quantum computing threats. The plan includes quantum-resistant wallet signature schemes at mainnet launch, short-term private state protection via virtual machines, and gradual upgrades to infrastructure and validator signatures. Arc's design offers full-stack coverage, user-selectable options, and compatibility with the Ethereum Virtual Machine (EVM), eliminating the need for large-scale migrations."
datetime: "2026-04-06T02:53:40.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/281727994.md)
  - [en](https://longbridge.com/en/news/281727994.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/281727994.md)
---

# Circle's Arc Blockchain Unveils Post-Quantum Security Roadmap

Circle's Arc blockchain has announced a roadmap for post-quantum security design, aiming to proactively defend against potential threats posed by quantum computing to blockchain technology. According to Foresight News, the roadmap focuses on ensuring end-to-end security for wallets, private states, validators, and infrastructure. The plan includes supporting quantum-resistant wallet signature schemes upon the mainnet launch. In the short term, quantum-resistant private state protection will be implemented through private virtual machines. Over the medium to long term, there will be gradual upgrades to infrastructure and validator signatures. Arc's quantum-resistant design features full-stack coverage and user-selectable options, supporting quantum-resistant wallets and private smart contract state protection. It is also compatible with the Ethereum Virtual Machine (EVM) ecosystem, avoiding the need for large-scale mandatory migrations.

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