 In for Jessica Ettinger, here's CNBC's Peter Schack now with Monday Business. Cyber security firm CrowdStrike is certainly hoping to have a better week this week than it did last week. CrowdStrike rolled out a software update that contained a bug, and that bug shut down Microsoft-based computer systems across many industries around the world. CrowdStrike quickly withdrew the bad update, and CEO George Kurtz says the company quickly went to work helping companies whose systems didn't completely recover upon a reboot.