Static authentication employs a fixed method like a password to prove a user's identity. In turn, this authentication method remains unchanged and a user has the same login experience every time. This may mean that every authentication request requires MFA, or that none do. This can create problems in multiple ways – too many security steps as a standard can cost productivity, while too few may open the door to cybercriminals.
Conversely, dynamic authentication takes context into account. Low-risk users may be able to stay logged in for longer before their sessions expire, while risky login attempts can be met with additional security challenges. This allows for smoother experiences for low-risk users and higher productivity while still maintaining a rigorous security standard.