Chalk up one more reason to check out Windows 8.1 Preview when it becomes available on June 26th. Today, Microsoft announced that it'll pay up to $100,000 in cash to those who discover and report novel security exploits within its latest OS revision, along with up to $50,000 in bonus loot for defensive suggestions that relate to the attack. But wait there's more. Starting on June 26th and running through July 26th, the Redmond
