Viral Hate: Containing Its Spread in the Internet Universe is a 2013 book co-authored by Abraham H. Foxman, the former national director of the Anti-Defamation League (ADL), and writer Yael Chanoff. The book addresses the proliferation of hate speech, extremism, and misinformation in the digital age, exploring how the internet has amplified bigoted ideologies and provided platforms for hate groups to organize and spread their messages globally. Foxman draws on his extensive experience combating antisemitism and other forms of prejudice to analyze real-world examples of online hate, including cyberbullying, radicalization through social media, and the role of anonymous forums in fostering extremism. The authors argue that while the internet offers unprecedented freedom of expression, it also poses significant risks to societal cohesion, urging readers to understand the mechanisms of viral hate to develop effective countermeasures.

The book combines case studies, historical context, and practical recommendations for containing online hate. It discusses the evolution of hate from traditional media to the web, highlighting incidents like the use of social networks by white supremacists and Islamist extremists. Foxman and Chanoff emphasize the responsibilities of tech companies, governments, and civil society in moderating content without infringing on free speech. They advocate for education, legal reforms, and technological solutions to monitor and mitigate harmful content. Published by Palgrave Macmillan, the work is positioned as a call to action for policymakers, educators, and internet users to actively combat the 'viral' nature of digital hate.

As a publication from a prominent figure in anti-hate advocacy, Viral Hate has been referenced in discussions on digital ethics and online safety. It critiques the laissez-faire approach of early internet platforms and calls for proactive interventions, influencing conversations around content moderation policies that later became central to debates on platforms like Facebook and Twitter (now X). The book's focus on Jewish perspectives on hate, given Foxman's background, also ties into broader networks of influence in combating extremism.