Halcyon is laser-focused on the single biggest threat keeping CISOs up at night: ransomware. Founded in 2021 in Austin, Texas by Jon Miller and Ryan Smith, the company builds an anti-ransomware platform designed to be the last line of defense when every other security tool has failed. Most endpoint protection platforms try to be everything — antivirus, EDR, firewall — while treating ransomware as just another malware category. Halcyon treats it as the primary threat it’s become.
The platform uses a multi-layered approach that combines pre-execution detection, behavioral analysis during execution, and automated recovery if encryption does begin. Halcyon’s key capture technology intercepts encryption keys during a ransomware attack, enabling rapid recovery without paying the ransom — even if the attacker’s payload successfully executes. The platform also includes anti-exfiltration capabilities to prevent the double-extortion tactics that modern ransomware groups favor, where they steal data before encrypting it.
Halcyon has raised over $140 million in funding from investors including Dell Technologies Capital and SYN Ventures, reaching unicorn status remarkably quickly. The company’s timing couldn’t be better — ransomware attacks have escalated from a nuisance to an existential threat for businesses of all sizes, with ransom demands regularly hitting eight figures. Traditional security vendors have been unable to stem the tide, creating a clear opening for a purpose-built solution. Halcyon’s approach resonates with security teams that have learned the hard way that their existing tools don’t stop sophisticated ransomware groups.
