This reemergence of the Banshee Stealer malware has threatened data theft and cyber attacks for millions of users with macOS. It is searching for sensitive information including browser credentials and cryptocurrency wallets with complicated evasion techniques designed to not trigger detection. The phishing campaigns, in addition to false software repositories, bring to the fore several significant vulnerabilities with respect to the security of macOS. The article explores the functionality, impact, and response of Apple to the malware, while offering actionable advice to users in order to improve cybersecurity. Expert insights and real-world case studies are added to highlight the need for vigilance in fighting emerging malware threats.