CyberFend alternatives
TL;DR: 12 companies doing similar work to CyberFend in B2B, ranked by how closely they match what CyberFend actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with CyberFend. They are scored on how closely their own description overlaps with CyberFend's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to CyberFend?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Dyneti Technologies | Reduce payment fraud | Winter 2019 | 3 | Active |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Templarbit | Protecting applications from malicious activity | Summer 2017 | 11 | Acquired |
| BitPatrol | AI-powered code security | Spring 2025 | 1 | Acquired |
| Sherpa Labs | Frontier Data | Winter 2025 | 5 | Active |
| Hiro | Agents that handle security work | Summer 2023 | 2 | Active |
| PromptArmor | LLM Security and Compliance | Winter 2024 | — | Active |
| Castle | Block bots & bad behavior | Winter 2016 | 20 | Active |
| Sqreen | Sqreen is the application security platform for the modern enterprise | Winter 2018 | 120 | Acquired |
| Overwatch | Enterprise software for enterprise risk and cyber fraud intelligence | Summer 2022 | 14 | Active |
| Smyte | Smyte stops bad actors on social networks and marketplaces. | Winter 2015 | 11 | Acquired |
Is CyberFend still active?
CyberFend has been acquired, which often means pricing, roadmap or support changes. That is the usual reason people start looking at this list.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with CyberFend. They are then ranked on how closely their own description overlaps with CyberFend's, so the closest matches come first rather than whoever happens to share a tag.