BlockBlock

BlockBlock is a lightweight Mac security tool that monitors your system for unwanted persistent software installations. It detects attempts to add login items, launch agents, or auto-run components—common tactics used by malware, adware, and bloatware to stay on your device. When a suspicious addition is found, it sends an immediate alert, letting you choose to allow or block the change. Working alongside existing antivirus tools, it adds an extra layer of protection by stopping persistent threats before they run. Its simple interface and minimal resource usage make it easy to use without slowing down your Mac.