Malwarebytes makes well-regarded security utilities for Windows. RELATED: Mac OS X Isn't Safe Anymore: The Crapware / Malware Epidemic Has Begun Crucially, that protection against malware doesn’t block all the adware and spyware bundled with application downloads. Macs do have some integrated protection against malware, but it isn’t perfect. Beyond traditional viruses, worms, and Trojans, there’s now a thriving ecosystem of adware and spyware programs that bombard you with ads and spy on your web browsing, just like on Windows.