# Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me

<https://simonwillison.net/2026/Apr/7/project-glasswing/>

- Host: [simonwillison.net](https://links.thingelstad.xyz/hosts/simonwillison.net/)
- Saved: April 9, 2026 (2026-04-10T02:10:50Z)
- Record: https://links.thingelstad.xyz/links/db3d2f24908f/
- JSON: https://links.thingelstad.xyz/links/db3d2f24908f.json

## Facts

- Kind: [Page](https://links.thingelstad.xyz/kinds/page/)

## Saved twice

- [Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me](https://links.thingelstad.xyz/links/642a7b3884b4/) (simonwillison.net, April 9, 2026)

## Same host

- [Andrej Karpathy talks about "Claws"](https://links.thingelstad.xyz/links/ae38530b7263/) (simonwillison.net, February 26, 2026)
- [Interactive explanations - Agentic Engineering Patterns - Simon Willison's Weblog](https://links.thingelstad.xyz/links/92c76d5af4ef/) (simonwillison.net, March 3, 2026)
- [A quote from claude.com/import-memory](https://links.thingelstad.xyz/links/0c55a3e7235b/) (simonwillison.net, March 3, 2026)
- [Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me](https://links.thingelstad.xyz/links/642a7b3884b4/) (simonwillison.net, April 9, 2026)
- [Changes in the system prompt between Claude Opus 4.6 and 4.7](https://links.thingelstad.xyz/links/1d174141f23a/) (simonwillison.net, April 21, 2026)

## Saved the same week

- [A Deeper Look at the ENS Explorer | ENS Blog](https://links.thingelstad.xyz/links/c0ddf5a36094/) (ens.domains, April 9, 2026)
- [Yikes, Encryption’s Y2K Moment is Coming Years Early | Electronic Frontier Foundation](https://links.thingelstad.xyz/links/1717b196e860/) (eff.org, April 9, 2026)
- [Little Snitch for Linux](https://links.thingelstad.xyz/links/35d73e34a801/) (obdev.at, April 9, 2026)
- [The AI Great Leap Forward](https://links.thingelstad.xyz/links/27af03f5917e/) (leehanchung.github.io, April 9, 2026)
- [S3 Files and the changing face of S3 | All Things Distributed](https://links.thingelstad.xyz/links/5a0b30ec1f21/) (allthingsdistributed.com, April 9, 2026)

## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://simonwillison.net/2026/Apr/7/project-glasswing/