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Guide
Best antivirus for Mac
The confusion
The received wisdom — 'Macs don't get viruses' — has been repeated long enough that it feels like a fact. Apple's own security research team publishes new macOS malware analyses regularly. Both things are simultaneously true: Macs face a different and historically smaller threat landscape than Windows, and that landscape is no longer as clean as the old claim suggests.
macOS ships with Gatekeeper, XProtect, and Notarization. Security researchers find macOS-targeted adware and info-stealers that XProtect missed. Antivirus company websites say their product is essential. It's not obvious where Apple's built-in layer ends and a third-party product's coverage begins — or whether the gap matters for your machine.
Most Windows-focused antivirus companies also publish Mac versions. Whether those are independently developed detection engines or Windows codebases adapted for macOS changes the quality of coverage significantly — and almost none of the marketing copy distinguishes between the two.
What most people assume
Most people assume all third-party antivirus products for Mac offer equivalent quality to their Windows counterparts. Several major Windows antivirus vendors produce Mac products with thinner detection logic, lower test scores, and engines that are updated less frequently. The products that perform consistently well on macOS-specific threats in independent testing — Bitdefender, Malwarebytes, ESET — are a smaller subset of the full market.
Most people assume adware and PUPs on Mac aren't serious threats. Browser-stored credentials, saved payment methods in Safari, and session tokens from logged-in services are the real targets of current macOS info-stealers. Adware that changes DNS settings or installs persistent browser extensions isn't cosmetically annoying — it's a credential exposure vector.
Most people assume Apple Silicon Macs are protected by the hardware itself in a way Intel Macs aren't. Apple Silicon's security architecture does meaningfully raise the bar for system-level compromise. It doesn't protect against application-layer threats — malware that runs with user permissions, browser-delivered exploits, or software bundled with legitimate downloads. The attack surface is smaller, not absent.
What's actually true
The primary Mac threats in 2025 are adware, browser hijackers bundled with legitimate software, and info-stealers targeting browser-stored credentials. These are the categories where Apple's built-in layer has documented gaps — XProtect's signature database lags active adware campaigns, and Gatekeeper can be bypassed by software a user explicitly chooses to install. A dedicated product covers those gaps.
For an already-infected Mac, Malwarebytes for Mac is the cleanup tool of choice among security professionals — the free scan removes adware and PUPs effectively without requiring a subscription. For ongoing real-time protection on a Mac that's used actively, Bitdefender's macOS product scores best in independent Mac-specific testing. ESET's Mac product has a notably lower resource footprint, which is relevant on machines where battery life or performance matters.
Where you might be
If the Mac is already showing symptoms — unexpected browser redirects, extensions you didn't install, search engine changed — that's adware, and the question shifts from 'which protection' to 'what's already there.'
See the Mac cleanup path →
If you're on an Intel Mac and regularly install software from outside the App Store — DMG files from developer sites, packages via Homebrew, browser extensions from extension stores — the attack surface is broad enough that real-time protection is worth running.
See Bitdefender's macOS detection profile →
If you're on Apple Silicon and primarily use App Store software and verified downloads, and the machine is used only by you — the built-in layer may genuinely cover your exposure. The upgrade argument is weaker in this configuration.
See the full analysis of Mac protection requirements →If the Mac is shared with family members or regularly used by someone who installs software without reading prompts — behavioral risk is higher regardless of hardware generation.
See the shared-device decision path →
What no tool solves
A Mac antivirus product running under Rosetta 2 emulation rather than native Apple Silicon code uses more battery and CPU than a native build of the same product. Check that any product considered has a native ARM build before installing — several major vendors still ship Intel-only Mac packages.
macOS's app sandbox limits what antivirus software can monitor compared to Windows. Some detection capabilities available on Windows — deep kernel-level monitoring, certain behavioral hooks — are restricted by macOS's security model itself. This is a platform-level constraint, not a product limitation.
No Mac antivirus prevents you from approving a malicious installation through Gatekeeper's prompt. The most common Mac infections arrive through software a user explicitly chose to install. Antivirus is a second line of defense in that scenario, not the first.
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