# Security Teams Reassess Adversary Emulation

A recent discussion questioned whether MITRE Caldera remains adequate for current adversary-emulation needs and sought free or reasonably priced alternatives, but identified no replacement products or pricing. One commenter said they had deployed Caldera recently and were supplementing gaps with log replay and AI persona agents. For government security teams and contractors, this points to a capability-and-cost evaluation rather than a defined acquisition opportunity.

- Teams assessing adversary-emulation tools can compare Caldera’s capabilities and cost with alternatives, although this discussion names no specific competing products or prices.
- The reported use of log replay and AI persona agents offers approaches to assess alongside replacement tools when evaluating capability gaps.
- Procurement planning can focus on documenting required emulation capabilities and comparing tool costs and supplemental methods; the signal does not establish a contract, solicitation, or mandatory requirement.

**Jurisdictions:** federal
**Industries:** Information Technology
**Topics:** Cybersecurity, Artificial Intelligence
**Published:** November 12, 2026

### Vendors
- MITRE ()

### Key Quotes
> anyone still using Mitre Caldera for adversary emulation? I find it to be outdated for current landscape, any alternative you might suggest where price will not be excessive or if there is any free alternative.
> — Original poster

> We stood it up just a few months back. It is a bit dated. Log replay and AI persona agents is how we have implemented some of the gaps that Caldera misses.
> — Commenter

### Sources
- [Adversary emulation](https://www.reddit.com/r/cybersecurity/comments/1xtyum7/adversary_emulation) - reddit-cybersecurity