Secfense is a cybersecurity company that develops authentication infrastructure for enterprises, centered around its core product: the User Access Security Broker (UASB). The UASB acts as a proxy layer that enables organizations to deploy multi-factor authentication (MFA) and passwordless authentication across any application — including legacy systems — without modifying the application's source code or database. The platform includes several components: the User Access Security Broker, Secfense IdP (Identity Provider), and Passkeys for Enterprises. These work together to support use cases such as passwordless IAM and CIAM, phishing-resistant MFA, legacy application protection, extended Windows Hello support, secure remote access, and regulatory compliance. Secfense targets medium to large enterprises, particularly in sectors such as banking and finance, telecommunications, and industry. One of its notable clients is BNP Paribas Polska. The solution is designed to remove the need for developer involvement during MFA deployment, reducing implementation complexity and cost. The company is headquartered in Poland and was founded by Tomasz Kowalski (CEO) and Marcin Szary (CTO). It has received investment from multiple venture capital funds including Bitspiration Booster VC, Tera Ventures, Presto Ventures, and RKKVC, with the first investment occurring in March 2018. Secfense supports FIDO2/passkey standards and positions its technology as foundational for zero trust security architectures by ensuring strong, phishing-resistant authentication across an organization's entire application portfolio.