I'm very inexperienced in using Ubuntu. I came to know about this because windows is really slow on my PC. I've heard that I don't need an antivirus on ubuntu, because we install everything from official repositories and all files are by default not executable. Phishing attack will work in all OS.
I'm using Google chrome on Lubuntu 16.04 64 bit with all updates. Does the sandboxing protection of google chrome extend to NTFS partitions mounted on Ubuntu? is the built in chrome/chromium sandbox designed to protect ONLY ext4 partitions? What about other browsers?