Just as the Shadow Brokers hacker group started crowing about a dump of never-seen-before flaws in Windows, Microsoft announced it already had fixed most of the exploits. "Today, Microsoft triaged a large release of exploits made publicly available by Shadow Brokers," said Microsoft Principal Security Group Manager Phillip Misner. "Most of the exploits are already patched." Three of the zero day vulnerabilities, which the hackers claimed were leaked from the NSA, did not work at all on Windows 7 and above.