Find the attack paths Mythos would find. Before your environment is compromised.

Scan with Prancer first. It maps your attack surface, then executes the attacks a frontier model would find, so you know what an attacker can reach today.

Prancer has been vetted and is an authorized user of Claude Mythos

Access to Anthropic's Claude Mythos for offensive testing and advanced vulnerability discovery is strictly restricted to vetted organizations and specialized enterprise security programs. Prancer holds that access and uses it to test your infrastructure.

The attack path

Mythos finds the vulnerability; Prancer runs the attack against the web app or API, obtains a credential and a usable identity, then pivots. One branch is blocked by a segmentation policy and the internal database is not reached; the other reaches an internal API, a cloud role and a critical asset, recorded as proven.

The first vulnerability is only the start. When an attack works, Prancer uses the new access, credential, identity or system as the starting point for the next authorized step.

How it works

Step 1 Scan: Prancer maps your attack surface — applications, APIs, identity, network, cloud.

Step 2 Attack: it executes the attacks a frontier model such as Claude Mythos would find, inside your authorized environment.

Step 3 Prove: every attempt ends in evidence — proven, control-blocked, or unreachable — then the attack is re-run after you fix it.

Talk to us

Tell us which environments you want tested. We will scope the scan, run the attacks, and hand you the evidence. Contact us to download the product or have us run it as a service. Contact us · Frontier Attack Validation · SwarmHack