Artificial intelligence is a powerful tool, and the same way scientists have used it to discover plenty of technological advances, people with bad intentions are using it to their advantage as well.
According to this article, spear-phishing is on the rise thanks to artificial intelligence. Unlike normal phishing, spear phishing is designed to target specific individuals by making the scam (usually emails) more personal. For hackers, it is impossible to personalize each email they send, but not for AI. This increases the probability of the user falling for the scam.
Read more about how hackers are using AI here: https://www.timesofisrael.com/ai-a-new-and-frightening-battlefield-in-cyber-war-experts-warn/