Cossack Labs

About

Cossack Labs is a Ukrainian-founded cybersecurity company established in 2014 by Julian Swallow, Eugene Pilyankevich, and Chris Hennings. It develops encryption and data protection solutions such as Themis, Acra, and Hermes, used across fintech, healthcare, and infrastructure sectors. The company operates from Ukraine and the UK, emphasizing open-source security tools and cryptographic frameworks. Leadership is mainly handled by co-founder Eugene Pilyankevich, who serves as CTO, while Julian Swallow oversees strategic direction.

Details

Products:

• Themis – cross-platform cryptographic library for data encryption and secure communication.
• Acra – database security suite with field-level encryption, tokenization, and intrusion detection.
• Hermes – framework for secure data storage and sharing in zero-trust environments.
• Toughbase – data management platform built around Hermes for encrypted collaboration.

Services:

• Product Security & SSDLC – implementation of secure software development practices.
• Security Strategy & Advisory – consulting on security architecture and risk management.
• Security & Cryptography Engineering – building custom cryptographic and data protection systems.
• Data Security Solutions – tailored encryption, tokenization, and anonymization for sensitive data.