The flaw you patched in Chrome is still sitting in a dozen other apps.
Many of the apps you use every day, such as Slack, Discord, VS Code and chat apps, are built on Electron or Chromium: they carry their own copy of a web browser engine inside. When Google fixes a flaw attackers are already using, Chrome updates within days. The browser engine inside each of those apps only updates when that app’s maker ships a new version. Some never do.
Mac Shield looks inside your apps.
It finds the engine each one carries and checks it against the flaws attackers are using. You’ll see things like:
- “This poker app runs a three-year-old browser engine that no longer gets security fixes”;
- “Your macOS version is behind on a flaw Apple says was used in targeted attacks”.
Everything that matters is checked.
- macOS itself, and Safari;
- Chrome, Firefox and other browsers;
- Electron and Chromium engines inside your apps;
- Homebrew, Node.js, PHP and Python packages, including known-malicious packages (OSV).
Every exposure comes with the fix.
The version to update to, the command to run, or the app to open, free for everyone. With Pro, many can be added to Fixes and done in a click.
One app can be behind on ten flaws. Mac Shield counts the things you need to update, not the flaws, so the number means something.
Hear about new flaws first. Pro
Pro checks quietly in the background and alerts you when a new advisory affects something you have installed.


