patacongo opened a new issue, #1667:
URL: https://github.com/apache/nuttx-apps/issues/1667

   Using stock configuration nsh:sim under ChromeOS (Debian), the login looks 
like:
   
       login: admin
       password: Administrator
   
   That is an error.  The password should not be exposed.  Prior to recent 
breaking changes to the serial driver, the login correctly looked like:
   
       login: admin
       password: 
   
   The password was not echoed so that it did not remain in the terminal 
display for anyone to see.
   
   I suppose that the correct solution with the changes to the serial driver 
would be to disable ECHO via termios before asking for the password, and 
re-enabling ECHO after the password has been entering.
   
   If TERMIOS is not enabled, then you are just screwed.  The password will 
always be echoed on the console.
   


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