Articles on Blockchain

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Data poisoning can make an AI system dangerous to use, potentially posing threats such as chemically poisoning a food or water supply. ArtemisDiana/iStock via Getty Images

How poisoned data can trick AI − and how to stop it

Data poisoning corrupts AI systems by teaching them with bad data. There’s no silver bullet to protect against it, but researchers are building defenses.
Is your social media group a budding democracy or someone’s fiefdom? John Trumbull's painting, Declaration of Independence, plus emoticons

Why the future of democracy could depend on your group chats

Americans associate with each other more online than off these days. How people interact in digital communities could have a big impact on democracy.

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