The MacBook features robust built-in antivirus protection through its macOS, which includes three layers of defense: the first layer prevents malware via App Store security features and Notarization; the second layer uses Gatekeeper, Notarization, and XProtect to stop malware from running; and the third layer employs XProtect to address any malware that may have infiltrated the system. Many users report satisfaction with this native protection, although caution is advised when downloading files from third-party sources. Third-party antivirus software, such as ESET, Surfshark, Avira, AVG, and Bitdefender, can provide additional security but may conflict with macOS's built-in protections. Safe downloading practices and regular macOS updates are recommended to reduce malware risks.