How secure is the Google Native Sandbox Disk?
If a sandbox application using google native APIs was to place a highly secure file in the Chrome Sandbox Disk, is it possible for an program outside of Chrome or another Chrome Native client to get access to such data?
One would hope that the Sandbox is completely hidden / encrypted from other sandboxed apps and external apps.
Programs outside of Chrome (running under the same user as Chrome or as root/administrator) can access any data saved in the HTML5 filesystem by NaCl or javascript. NaCl applications and javascript from a different domain can't access them.