A Microsoft insider is predicting Friday's global internet problems will be the largest IT outage in history. While affecting Microsoft products and systems, it appears to link back to a problem with security provider 'CrowdStrike,' which provides large organisations with IT protection. A bad update looks to be the cause. SABC News London Correspondent Stuart Smith has more from London. For more news, visit sabcnews.com and #SABCNews on all Social Media platforms.