security

Virus total found 4 risks http://www.virustotal.com/file-scan/report.html?id=7f41dd5ac4cac4a210776...

Very fine software.

I have an important security concern I'm hoping you can help solve.

Question 1:
How can I be sure the .xml updates are legitimate and from you,
what checks are in place? Is there a method to verify the updates via hash or key or otherwise?

Question 2:
Can I accept 'all' updates at once without having to click OK to each one?

Thank you much.
Justin