I am using a LogWriter for the FileTransferClient class which descends from LogWriterBase.
If LogLevel is set to Info, the password is written out as **********. e.g.
Command: USER sparky
Response: 331 Password required for sparky
Command: PASS **********
Response: 230 Logged on
However, if the LogLevel is set to Verbose, the password is written to the log. e.g.
Info: Sent data over control connection:
0000 |55-53-45-52-20-73-70-61 72-6B-79-0D-0A | USER sparky..
Info: Received data over control connection:
0000 |33-33-31-20-50-61-73-73 77-6F-72-64-20-72-65-71| 331 Password req
0010 |75-69-72-65-64-20-66-6F 72-20-73-70-61-72-6B-79| uired for sparky
0020 |0D-0A | ..
Info: Sent data over control connection:
0000 |50-41-53-53-20-xx-xx-xx xx-xx-xx-xx-xx-xx-xx-0D| PASS ThePassword.
0010 |0A | .
Info: Received data over control connection:
0000 |32-33-30-20-4C-6F-67-67 65-64-20-6F-6E-0D-0A | 230 Logged on..
I can use a regular expression to replace this in the overridden Write method, but it should probably be changed to work the same way as LogLevel.Info?