There is a second reason this happens. If you downloaded CleanMyMac X from a torrent site, a YouTube link promising a "free lifetime license," or a software piracy forum, the application has likely been modified (cracked). macOS detects the altered code signature and correctly identifies the app as damaged or malicious. If this is the case, follow the fixes below. Trash the file, run a malware scan (like Malwarebytes), and purchase a legitimate license. Cracking software is the #1 way to install keyloggers and crypto-miners on your system.
If you're determined to resolve the issue without losing your data or access to the application, there are alternative solutions. There is a second reason this happens
Sometimes, disk errors can cause applications to malfunction. You can use Disk Utility to check for and repair disk errors. If this is the case, follow the fixes below
: When you download an app, macOS attaches a "quarantine" attribute to it. If this attribute isn't cleared correctly, Gatekeeper may block the app. If you're determined to resolve the issue without