Issue with Facebook spam filter shuts down social sharing for hours

Some Facebook users encountered a major glitch Monday.
Early in the morning, a technical problem prevented people from posting articles via the share buttons on a number of websites, including The Wall Street Journal, Bloomberg and Reuters.
A Facebook spokesperson blamed the technical difficulties on an issue with a spam filter, ZDNet reported. That filter is designed to prevent the spread of malware on the social network, but it produced "Message Failed" dialog boxes for some people sharing leg