[[servlet-authentication-password-storage]]
= PasswordEncoder

Spring Security's servlet support storing passwords securely by integrating with xref:features/authentication/password-storage.adoc#authentication-password-storage[`PasswordEncoder`].
Customizing the `PasswordEncoder` implementation used by Spring Security can be done by xref:features/authentication/password-storage.adoc#authentication-password-storage-configuration[exposing a `PasswordEncoder` Bean].