Researchers are warning of an increase in phishing emails that use YouTube redirects. The emails use a legitimate redirector URL to bypass web browser phishing filters. The attackers purported to be with SharePoint, a web-based collaborative platform that integrates with Microsoft Office. The email indicated that a new file has been uploaded to the target company s SharePoint site, and included an option to View File The phishing landing page itself is hosted on a legitimate Google page.
Source: https://threatpost.com/phishing-skirts-detection-youtube/153639/