Countless flights have been canceled, hospital services have been disrupted, online services are down for a number of big banks, and we are being told that millions of workers may not receive paychecks this month.  If a single software "glitch" can cause this much insanity, what would happen if the Internet was suddenly not available for an extended period of time?

A lot of people initially speculated that a cyberattack may be happening, but the truth is that virtually all of the chaos that we have been witnessing was caused by a CrowdStrike update…

The issue was caused by a technical problem that global cybersecurity firm CrowdStrike said it had identified in its software and was working to resolve. CrowdStrike provides antivirus software to Microsoft for its Windows devices.

"Earlier today, a CrowdStrike update was responsible for bringing down a number of IT systems globally," Microsoft said in a statement to CBS News.