Halcyon
Verified Oct 21, 2026 ActiveLayers pre-execution detection and behavior analysis to block ransomware, backed by a 24/7 team if an attack still lands.
Listed on EffectHub ·
Pricing
- Pricing model
- Contact sales
Sold to mid-market and enterprise buyers through 'Get a Quote' and demo requests; no public price list (the /pricing path returns 404).
Use tool ↗About Halcyon
Halcyon is an endpoint security platform built specifically against ransomware rather than malware in general. It combines a behavioral detection engine that runs pre-execution and during an attack, a 24/7 Ransomware Operations Center staffed by human analysts, and encrypted-data recovery that can restore files without relying on backups if encryption succeeds anyway. Coverage spans the full attack chain from initial access through data exfiltration and encryption, with agents for Windows and native macOS support, designed to run alongside existing EDR and backup tools rather than replace them. Halcyon is sold to enterprises only, with pricing available after a demo request. The company was founded in 2021 by a team of cybersecurity veterans and is headquartered in San Diego, California.
- API
- Not confirmed
- Last verified
- Oct 21, 2026
Verified sources
- Platform overview lists ransomware prevention, data-exfiltration blocking, encryption blocking, encrypted-data recovery, EDR tamper protection and a 24x7 Ransomware Operations Center, with 'Get a Quote' and 'Get a Demo' calls to action and no listed price (15 October 2026)halcyon.ai ↗
- Company page says Halcyon formed in 2021, builds for mid-market and enterprise customers and is headquartered in San Diego, CA with a remote workforce (15 October 2026)halcyon.ai ↗
Is Halcyon legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Dec 16, 2017 (8 years ago)Registry record (RDAP), registrar MarkMonitor Inc., looked up Sep 16, 2026
- TLS certificate
- Issued by Google Trust Services, valid until Nov 28, 2026Seen in our own connection to the site on Oct 21, 2026
- Last checked
- Oct 21, 2026The site answered
- On the market since
- 2021The vendor's own material, read by us
- Operated by
- Halcyon, United StatesOur research, card verified Oct 15, 2026
Pros & cons of Halcyon
A reasonable layer to add specifically against ransomware for an enterprise that already runs general EDR and backups, since it is built around that one attack type end to end, including recovery if prevention fails. It is not a replacement for broader endpoint protection, and like most enterprise security tools there is no self-serve pricing to compare against alternatives.
Pros
- Covers the full ransomware chain: pre-execution detection, behavioral analysis, and encrypted-data recovery
- Includes a 24/7 human-staffed Ransomware Operations Center, not just software
- Native Windows and macOS agents that run alongside existing security stacks
Cons
- No public pricing; every deal requires a sales conversation
- Enterprise-focused, with no offering sized for individuals or very small teams
Best for
- Enterprises adding ransomware-specific defense on top of existing EDR and backup tools
- Organizations that want a dedicated incident-response team on call for ransomware
Not for
- Individuals or small teams without an enterprise security budget
- Anyone wanting general-purpose antivirus or EDR as their only protection
Watch out: It is designed to run alongside existing EDR and backup products, not to replace them, so budget for it as an addition rather than a swap.