The Internet Computer has activated a new security feature designed to protect sensitive data from exposure at the hardware level, marking a development in the use of confidential computing within public blockchain infrastructure.
The update, announced by DFINITY, introduces Secure Encrypted Virtualization (SEV) Subnets across the Internet Computer network. The technology, developed by AMD, encrypts data while it is stored in memory, reducing the risk of unauthorised access even by those with physical control of server hardware.
Björn Tackmann, Engineering Lead at DFINITY, said the upgrade addresses a long-standing weakness in conventional cloud computing systems, where information is typically processed in plaintext while residing in memory.
Under standard cloud architectures, data may be encrypted when stored or transmitted, but it is generally decrypted during processing. This creates a potential point of exposure for operators with privileged access to hardware. SEV technology is designed to close that gap by encrypting memory contents and allowing decryption only within a protected area of the processor itself.
DFINITY says the launch of SEV Subnets enables applications handling private or commercially sensitive information to run on the Internet Computer’s public network without relying on traditional trust assumptions between users and infrastructure providers.
The system also incorporates remote attestation, a process that allows participants to verify that a node is running approved software before trusting it with sensitive workloads. Supporters argue that this provides an additional layer of transparency and assurance for developers and organisations considering decentralised infrastructure.
The upgrade may also affect how Internet Computer subnets are structured. According to DFINITY, the stronger security model allows some subnet configurations to operate with seven nodes instead of the 13 typically required, while maintaining security guarantees. The organisation argues this could improve efficiency and reduce operational costs without compromising network resilience.
Confidential computing has become an area of growing interest across the technology sector as organisations seek ways to process sensitive data while maintaining privacy and regulatory compliance. Major cloud providers including AMD, Microsoft, Google and Amazon have all invested in technologies aimed at protecting information during processing.
The Internet Computer’s adoption of SEV places it within a broader industry trend towards hardware-based security protections. What sets the approach apart is the attempt to combine confidential computing with a decentralised public network rather than a traditional cloud environment.
Industry observers note that while confidential computing can reduce certain security risks, broader cybersecurity challenges remain. Protection against software vulnerabilities, human error and application-level attacks continues to depend on system design, operational practices and ongoing monitoring.
For DFINITY, the launch represents another effort to position the Internet Computer as an alternative platform for enterprise and government workloads that require stronger privacy guarantees. Whether it leads to wider adoption will depend on how organisations balance the benefits of decentralised infrastructure against the practical requirements of security, compliance and performance.
The introduction of SEV Subnets adds a new layer of protection to the Internet Computer network and reflects a growing push across the technology sector to ensure sensitive information remains protected throughout its entire lifecycle, including while it is being processed.
Dear Reader,
Ledger Life is an independent platform dedicated to covering the Internet Computer (ICP) ecosystem and beyond. We focus on real stories, builder updates, project launches, and the quiet innovations that often get missed.
We’re not backed by sponsors. We rely on readers like you.
If you find value in what we publish—whether it’s deep dives into dApps, explainers on decentralised tech, or just keeping track of what’s moving in Web3—please consider making a donation. It helps us cover costs, stay consistent, and remain truly independent.
Your support goes a long way.
🧠 ICP Principal: ins6i-d53ug-zxmgh-qvum3-r3pvl-ufcvu-bdyon-ovzdy-d26k3-lgq2v-3qe
🧾 ICP Address: f8deb966878f8b83204b251d5d799e0345ea72b8e62e8cf9da8d8830e1b3b05f
Every contribution helps keep the lights on, the stories flowing, and the crypto clutter out.
Thank you for reading, sharing, and being part of this experiment in decentralised media.
—Team Ledger Life
Community Discussion