Cybersecurity, tailored for your mission

We solve security challenges in complex mission-critical systems end-to-end: we deliver R&D, services, developer tools and bespoke solutions addressing practical risks in high-stakes scenarios.

Trusted by innovators to address critical challenges

Read customer stories

Enhancing Ukraine’s cyber resilience

Cossack Labs stands with Ukraine. We bring our diverse range of capabilities to all needing forces, organisations and agencies that help protect Ukraine across critical infrastructure, defence and government.

We operate where the risks are

We bring tailored security solutions to innovators operating in the world’s most demanding environments.

Defence]
We improve security and resilience of nations’ most critical systems, ensuring mission success.
Read moreDefence

Energy]
We deliver battle-tested solutions to build resilience in critical infrastructure, ensuring trust and availability in strategic systems.
Read moreEnergy

Finance]
We ensure that your product is ready to scale and bring security capabilities and solutions to solve high-risk security problems.
Read moreFinance

Consumer Apps]
You manage sensitive data of millions of your users? We're experienced in protecting massively successful B2C products without slowing their pace.
Read moreConsumer Apps

Healthcare]
Patient data is an important class of sensitive data that requires combining security and compliance with usability and interoperability in special ways.
Read moreHealthcare

IoT, Robotics and Hardware]
We enable secure edge solutions in traditional ICS/SCADA, modern IoT and dynamic robotic systems by protecting devices and data.
Read moreIoT, Robotics and Hardware

What our customers say

  • "The security engineering team cares not only about security but also about the product itself. It creates real alignment, making security feel like a natural part of the process rather than just a compliance checkbox."

    Lt. Col. Artem Martynenko, Center of Innovations and Defense Technologies Development of the Ministry of Defence of Ukraine

  • "Engaging with Cossack Labs has been a transformative experience for our team and our platform. Establishing secure development practices with design and code review was just one facet of our engagement, they also helped us immensely in developing processes, education, evaluating third-party vendors, managing security researchers, and many more. A highly competent team, I fully recommend working with Cossack Labs."

Austin Feight, Engineering Lead at Crossmint

  • "We improved our applications, deepened our knowledge of application security, and gained a better understanding of mobile platform security. Your team’s knowledge and friendliness made the entire process easy and enjoyable. We are excited about future collaborations."

Konstantinos Natsios, lead mobile engineer at TradingCom

  • "We asked Cossack Labs engineers to review the security and cryptography in our products. What we’ve got was beyond expectations: a highly detailed analysis and lots of practical advice on how to fix current issues and implement long-term enhancements, all of them in line with our security and business goals."

Korney, CTO and Co-founder at MadFish.Solutions

  • "Thank you very much for all you did so far & the thoroughness, skill & knowledge you invested into this, all of you!"

Founder of a blockchain software company after our cryptographic review

  • "I have definitely learned A LOT since we started working together with Cossack Labs. I have learned to be a better engineer because of their knowledge in mobile security."

Ronald, Software Engineering Manager at M&A SaaS provider

  • "Cossack Labs shares myGaru’s mission to put individuals in the center of digital processes and give control on personal data back to users. Cossack Labs team is building secure data processing components and the privacy layer of myGaru solution."

Vitalii Morozenko, Founder and CEO at myGaru

  • "We were thrilled work with Cossack Labs, leveraging their 15+ years of experience, to secure Bear user’s notes. It enabled us to elevate our core user experience with the security and privacy our users demand."

Shiny Frog team, creators of Bear app

  • "Cossack Labs covered our back in data security, helping us to serve our customers better and target not only private hospitals, but also governmental healthcare companies."

Andrei Popa, CTO at GoClinic

  • "End-to-end encryption engine based on Themis and Acra allows us to scale our product and attract new customers while being sure that their data is available only to them."

Sergey Zenchenko, CEO at AppSpector

We protect innovations used by millions

  • UA DroneID: friendly drone identification for Ukraine military]
    UA DroneID is a security and identification technology for unmanned systems, designed and tested in real combat conditions. It protects mission-critical assets, enhances the efficiency of UVs and robotic systems, and ensures trust between drones, operators, and command structures.
    Customer story

  • Building security for M&A solutions: 5-years of SSDLC]
    Long-term cooperation with the [REDACTED] company resulted in refined security practices that matched the evolution of their B2B platform. We enabled transition from reactive "firefighting" to a proactive security posture, while simplifying security processes and building security defences.
    Customer story

  • Product security for one of the biggest African banks]
    When a bank launches an entirely new banking application, it necessitates a thorough mobile security assessment, diligent efforts to ensure financial transaction security and tailored fraud prevention measures.
    Customer story

  • Xaman wallet security assurance and improvements]
    Conducting a comprehensive security assessment of the Xaman app to ensure the robust protection of key materials, maintain cryptographic soundness, enhance application security.
    Customer story

  • Securing an ecosystem of edge ML devices]
    Designing and implementing security of specialised IIoT devices that run ML. Data protection, ML models protection, secure communication, fleet management, and anti-reverse engineering.
    Customer story

  • Protecting telemetry data of power grids]
    Protecting data signals transmitted over the air between power distribution stations and central dispatch system.
    Customer story

About Cossack Labs

We are on a mission to make the world a safer place for everyone in the future. We work with those who build tomorrow’s technology to protect the people who rely on it. We are allies with those who look at technological progress through these lenses of responsibility, careful engineering, well-thought decisions that build a safer future.