CoreLock is a free Mac security app that runs a six-check scan on your Mac: running apps, network (services listening beyond this Mac), app permissions, login and background items, running AI agents, and the Downloads folder (checked against a built-in list of known-malware hashes and malware-signature rules). The results become a 0–100 Security Score and a list of findings explained in plain English. The scan runs on your Mac; optional AI explanations (off by default) send a summary to our servers, never your files. Free includes unlimited scans and 3 AI scan reviews a day. Pro is $9.99/month, $50/year, or $200 once for Lifetime, with deep file scans, AI scan reviews without the daily limit, optional sync and priority email support. Available for macOS 13+ (Apple Silicon and Intel). No account needed for the local checks.
CoreLock checks running apps, network, permissions, login items, AI agents and your Downloads folder, then tells you, plainly, what needs a look. Local-first. Free.
“PUP.Optional.BundleInstaller detected.” What does that mean? Is it bad? Your guess is as good as ours.
260 processes. Most are fine. Three are not. You have no idea which are which — and neither does Apple, who built it.
When you last checked: never. Screen recording, microphone, full disk access — someone has them. Do you remember who?
Every scan checks running apps, network, app permissions, login and background items, AI agents and your Downloads folder, then turns the results into a 0–100 Security Score. A check that can't run is shown as not checked, never counted as passed.
Which apps hold camera, microphone, Screen Recording, Accessibility and Full Disk Access, and which removed apps left access behind. Revoke opens the right page of System Settings.
Services listening beyond this Mac, and your apps' open connections by IP address and port.
Re-verify the apps in your Applications folders. Flags unsigned apps and broken or expired signatures.
Each scan reviews your LaunchAgents and LaunchDaemons folders and flags unsigned or unusual items. You decide what to remove.
Every scan checks the files in your Downloads folder against a built-in list of known-malware hashes and CoreLock's malware-signature rules, and scores scripts and installers with simple heuristics. A signature match is worth a look, not proof. Pro's Full scan adds Documents, Applications and the launch folders.
See what running AI agents like Claude Code and Cursor have open: files, network connections and child processes. A snapshot, not a recording.
Free download, no credit card. The local checks need no account.
Click Scan. CoreLock runs six checks: running apps, network, app permissions, login items, AI agents and Downloads.
Plain-English explanations, sorted into Needs action and Worth a look. Some offer Quit or Quarantine; most point you to the right setting.
This program mines cryptocurrency with your Mac's processor. If you didn't install it on purpose, quit it, then find out how it got here.
A launch agent in your Library folder starts this helper every time you log in, and it isn't signed by an identified developer. If you don't recognize it, remove it.
| Capability | CoreLock |
|---|---|
| Plain-English explanations | Yes |
| Optional AI explanations of your scans | Yes (off by default) |
| Privacy permissions list | Yes (needs Full Disk Access) |
| App signature and notarization check | Yes (on demand) |
| Login and background items | Yes |
| Services open to your network | Yes |
| AI agent snapshot | Yes |
| Real-time blocking | No |
| Monthly price (Pro) | $9.99 ($50/yr) |
The full six-check scan, free. No credit card, and no account for the local checks.
Deep file scans of more folders, AI scan reviews without the daily limit, optional sync and priority email support.
Pro for a team's Macs. Includes 3 seats, then $7/seat per month.
After purchase, create your team and invite people from Account, at the bottom of CoreLock's sidebar. Members get everything in Pro.
See Business plansDownload CoreLock. Run one scan, and you'll know more about your computer than most of its owners ever will.
Not ready to install? Get your free Mac Security Score →