It is a responsibility of persons downloading stuff to try to do security checks. However, a much greater responsibility is due to the company that provides downloading services.
What the security company quoted above noted was that Google did not eliminate all the instances of a particular malware that Google had already identified. Google thought that there was only one cockroach in the kitchen.
Unrealiable service providers make the lives of ordinary users nasty, difficult and short.
What would be a proverb that would suit the case of this megacompany we would like to love?
Could Google at least promise not to let us down again? And restore iGoogle for forever. And do no evil.