Some files are not automatically encrypted because the file type may be important to another file's dependancies. Please consult this list to learn about which files will not encrypt automatically.
files starting from .
files starting from ~$
files ending in .tmp
files ending in .crdownload
files named Icon
Files with extensions exe, dll, drv, sys, com, vxd, 386
Configuration files: inf, ini, manifest, cmd
Google docs files: gdoc, gslides, gsheet, gform, gdraw
If you would like to secure the file, you may still right-click and select "Apply Privacy".