Summary:

Use common sense and caution when you use your Mac, just like you would
in any social context. There is no product, utility, or magic talisman
that can protect you from all the evils of mankind!

*

There will always be threats to your information security associated
with using any Internet-connected communications tool:

1. You can mitigate those threats by following commonsense practices.

2. Delegating that responsibility to software is an ineffective defense!

3. Assuming that any product will protect you from those threats is a
hazardous attitude that is likely to result in neglecting point #1 above.

https://discussions.apple.com/docs/DOC-8841

(Accreditation: John Galt)

Last Modified: May 3, 2018