Attackers are abusing Google Ads and legitimate Claude.ai shared chats in an active malvertising campaign. Users searching for "Claude mac download" may come across sponsored search results that list claude.ai as the target website, but lead to instructions that install malware on their Mac. [...]

https://www.bleepingcomputer.com/news/security/hackers-abuse-google-ads-claudeai-chats-to-push-mac-malware/