Malware in the cyber landscape?
“The last few months have seen a big increase in malware attacks using PDF email attachment .. many recent attacks have relied on getting users to click links in emails leading to infected webpages instead of requiring them to open an attachment, as was traditional.”
Good Grief!
“In many cases, targeted PDFs use zero-day exploits for browsers”
Well then, there's your answer right there, we must ban outright browsers from connecting to the Internet.