twostep

Twostep, or two-step, is a term used across multiple domains to denote a pattern or activity that unfolds in two distinct stages. It can refer to a dance style as well as to process structures and security measures.

In dance, two-step describes a partner dance characterized by a two-beat step pattern and a sequence of steps that typically move the couple forward with a “quick-quick-slow” feel. The most widely known forms are American two-step (often called country-western two-step) and Western two-step, each with regional variations in footwork and timing. The style is performed in social settings and competitions and has influences from earlier European dances.

In security and computing, two-step commonly appears as two-step authentication, a form of two-factor authentication. This requires two separate proofs of identity, usually something the user knows (a password) and something the user has (a code from an authenticator app, a hardware token, or a text message). Two-step authentication reduces the risk of credential theft by adding a second verification factor. The term can also describe two-step verification processes used in account recovery and access workflows.

In general usage, a two-step process refers to any workflow composed of two distinct phases, such as planning and execution, validation and implementation, or data collection and analysis. This division helps clarify responsibilities, improve risk management, and simplify troubleshooting.

Overall, twostep is a flexible term applied to dance, security, and process design, unified by the core idea of two successive stages. See also two-step authentication and two-factor authentication for related security concepts.