Cossack Labs

1. Cossack Labs: homepageChecked on September 3, 2026
2. Cossack Labs: AboutChecked on September 3, 2026
3. COSSACK LABS LIMITED: Companies House (UK company register), company no. 09094341Checked on September 3, 2026. Incorporated 19 June 2014, status Active, registered office 190 Clarence Gate Gardens, Glentworth Street, London NW1 6AD, SIC 62012 Business and domestic software development.
4. "COSSACK LABS UKRAINE" LLC: YouControl (Ukrainian company register extract), EDRPOU 39448403Checked on September 3, 2026. Ukrainian subsidiary registered 20 October 2014 in Kyiv, primary activity 62.01 Computer programming, status Registered/active as of access date. Confirms the UK entity as parent.
5. Cossack Labs: company profile on DOU jobs (Ukrainian IT job board)Checked on September 3, 2026. The company's own profile states a team size of 21-80 specialists and offices in Kyiv, Lviv and London.
6. Cossack Labs: All services (overview)Checked on September 3, 2026. Detailed service catalogue grouped as Strategic Advisory, Security Engineering, Cryptographic Engineering, Customer Success & Support; also states engagement approach (SLA-based ongoing support, project-based implementation, team augmentation).
7. Cossack Labs: Services (top-level landing page)Checked on September 3, 2026. High-level grouping: Security Assurance, Product Security Programme, Strategic Security Consulting, Research & Development.
8. Cossack Labs: Security engineering & architecture (solutions page, includes site-wide industry list)Checked on September 3, 2026. Lists solutions by industry: Finance, Defence, Healthcare, SaaS, Public Sector, Industrial / CNI, Consumer apps.
9. Cossack Labs: SaaS security solutionsChecked on September 3, 2026. Mentions GDPR, CCPA, LGPD, SOC2, ISO/IEC 27001, PCI DSS only as compliance obligations facing the SaaS customer/client, not as Cossack Labs' own certifications or signed agreements.
10. Cossack Labs blog: Smart contract security audit: tips & tricksChecked on September 3, 2026. Describes Cossack Labs' own smart contract security audit methodology ("Smart contract security audit by Cossack Labs") and references the Allbridge engagement.
11. Cossack Labs: Customer stories (case studies index)Checked on September 3, 2026
12. Case study: Building security for M&A solutions: 5 years of SSDLCChecked on September 3, 2026. Client anonymized ("a global leader" VDR/M&A SaaS provider). Reports 80% stable security score maintained for 2 years, 160+ requirements in tailored Mobile Security Score standard, zero critical findings in recent external penetration test, over a 5-year engagement.
13. Case study: Product security for one of the biggest African banksChecked on September 3, 2026. Client anonymized ("name of the bank is REDACTED"), described as one of the largest banks in Africa, 10+ million clients. Reports 100% of basic and 89% of advanced Mobile Security Score requirements met after a 4-month engagement (Apr-Jul 2023), security score doubled after fixes.
14. Case study: Xaman wallet security assurance and improvementsChecked on September 3, 2026. Client named: Xaman (XRPL Labs), self-custodial XRPL crypto wallet, formerly Xumm. Reports compliance with a 65-item security requirement baseline rising from 43% to 89% after fixes were verified.
15. Case study: End-to-end encryption and multi-device synchronisation for 6M usersChecked on September 3, 2026. Client named: Bear (note-taking app by The Shiny Frog). Reports 6 million users and 500,000 monthly active devices.
16. Case study: Protecting telemetry data of power gridsChecked on September 3, 2026. Client anonymized on this page as a "country-wide transmission system operator", 2019-2021 engagement, telemetry from hundreds of power distribution stations, generators and large consumers routed through an Acra-based aggregation cluster.
17. Cossack Labs press release: Enhancing Ukraine's cyber resilienceChecked on September 3, 2026. Names NPC "Ukrenergo" (Ukraine's national power grid operator) as the client behind the power-grid security work described anonymously in s16, funded via the USAID Cybersecurity for Critical Infrastructure in Ukraine Activity. Also names a partnership with the Ministry of Digital Transformation of Ukraine, the Ministry of Defence of Ukraine and Aerorozvidka NGO on the UA DroneID friend-or-foe drone identification system.
18. Case study: Smart contracts security and consistency (Allbridge Classic)Checked on September 3, 2026. Client named: Allbridge Classic, cross-chain bridge on Tezos. August-September 2022 smart contract security audit.
19. Cossack Labs organization on GitHubChecked on September 3, 2026. GitHub-verified organization domain cossacklabs.com; hosts open-source products Themis and Acra. Confirms company identity, not used for services facts.

Every field on this profile records which of these sources it came from. The profile was last rebuilt from them on September 3, 2026. A field no source confirms is left empty rather than estimated.