Panasonic CF-T1 Reference Manual page 37

SD Memory Card/MultiMedia Card
SD Memory Card Security Function
When you initialize an SD memory card, you can provide the card a security function.
You can insert an SD Memory Card instead of entering a password for purposes such as
the following.
G
In order to start your computer.
G
In order to log on to Windows.
G
When you want to use the computer while the screensaver is active.
In addition, you can set the security function on a single SD memory card for multiple
computers. Note, however, that this can only be done if all of the computers use the same
password.
This security function only works in the SD memory card slot. It does not work in devices
such as an SD card reader connected through a USB connection.
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