# New Mior and Skyfall Attacks Let Rogue Cloud Hosts Steal Secrets From AMD SEV-SNP VMs

Source: [The Hacker News](https://thehackernews.com/2026/11/new-mior-and-skyfall-attacks-let-rogue.html) · 2026-11-13 · Security
Page: https://themorning.dev/story/new-mior-and-skyfall-attacks-let-rogue-cloud-hosts-steal-secrets-from-amd-sev-sn-fb5ac890be2a0d21
Kind: security · Impact: high

## In brief

- Two attacks, Mior and Skyfall, were made public this week.
- Both let a malicious cloud host read data inside AMD SEV-SNP-protected virtual machines.
- Mior can also modify a VM's memory and forge the signed report that attests which software it runs.

## Why it matters

AMD SEV-SNP is meant to keep a VM's data private even from the host operator. If these attacks hold, that guarantee does not hold against a malicious host, which matters for anyone relying on confidential computing in the cloud.

## Timeline

- 2026-11-13: Mior and Skyfall attacks made public

## Coverage

- [New Mior and Skyfall Attacks Let Rogue Cloud Hosts Steal Secrets From AMD SEV-SNP VMs](https://thehackernews.com/2026/11/new-mior-and-skyfall-attacks-let-rogue.html) — The Hacker News, 2026-11-13

Tags: confidential-computing, amd, sev-snp, virtualization, cloud-security, vulnerability

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Dev – https://themorning.dev