How has social media made it easier for false news to spread and deceive people?

Speed and quality of the news.

Explanation:

Social media have had an enormous impact on the spreading of news in two main ways. The first is the speed at which news can now be transmitted. There is practically no delay between the original publication of a piece of news and its arrival to any part of the world.

The other factor is quality. Social media has facilitated the spread of fake and false news that can go viral simple because it is shared so many times. People are far more likely to believe something that looks official and that has been shared by a friend than to investigate the validity of the content.