In 2017 only 1 in 5 companies used AI in business activities, but according to new research by McKinsey, 63% of firms say they plan to increase their investment in AI over the next 3 years. Around 1 in 4 firms say AI generates at least 5% of their net earnings. To save money, firms used AI to improve supply chain management. However, firms have not ramped up their protection against AI-related risks despite their increased use of and investment in AI. Here are the top 5 ways companies use AI in business.