Tips : create/alter/drop user in firebird 2.5 , or howto get rid of gsec
On .net provider list Rick Roen is writing a utility to change user password , the best way to change it is from sql :).
Read the user create/delete/update notes.
Now a regular user can change it’s own password without the need for sysdba intervention:
The new DDL command ALTER USER enables an “ordinary” user (a regular Firebird user, a non-root user on POSIX or a trusted user on a Windows system where trusted authentication is enabled) the ability to change his or her password and/or personal name elements, while logged in to any database.