Themis is a high-level open-source crypto library which solves 90% of typical data protection use cases that are common for most web and mobile applications. It is best suited for corporate infrastructures and stand-alone applications working for large enterprises, startups, and tech-savvy SMEs from healthcare, traditional and embedded financing, as well as unbundled banking, modern fintech, critical infrastructures, and other industries. Created by cryptographers for software developers to help them with data protection, Themis supports 14 languages/platforms and is easy-to-use and hard-to-misuse. Besides solving typical data protection use cases, it also helps to reach better compliance with the current data privacy regulations, such as GDPR, HIPAA, DPA, and CCPA. Themis is recommended by OWASP MASVS as a cryptographic library to use in mobile apps. Themis is a flagship data security software product created by Cossack Labs, a British company, headquartered in London, with R&D in Kyiv, Ukraine.