We've talked a lot about the Zero-Click attack that was recently propagated on Outlook. It allows for a damaging attack that steals NTLM hashes (the form in which Windows passwords are stored) without any user interaction--no clicks, no replies, the user doesn't even have to open or see the email. The exploit happens during Outlook processing, before it hits the inbox.

We had Gil Friedrich, Avanan co-founder, discuss why this attack is a game-changer: