On: Can't you just right click?

[catmistake]

Disabling Gatekeeper From the Apple menu, open the "System Preferences" application. Click on Security & Privacy > General tab. If the lock in the left-hand corner is locked, click on it, then enter your Mac's username and password. This may not be required. Click "Anywhere" under "Allow applications downloaded from:". If you followed Step 3, please click the lock in the left-hand corner to return it to its locked state. Close "System Preferences".

[ttepasse → catmistake]

Since MacOS Sierra the “Anywhere” option is not visible per default in the System preferences. To set Gatekeeper to “Anywhere” you‘ll need to do it via terminal:

  $ sudo spctl --master-disable

Then the “Anywhere” option is visible in the System Preferences UI. But only while active.

[jbergens → catmistake]

Sounds like a security disaster for non-technical users. It is much better to trust a specific app from now on than to trust the entire internet from now on.

[catmistake → jbergens]

The assumption is that developers need free reign. One would hope a developer is a technical and savvy user.

Not for nothing, Gatekeeper once did not exist. Myriads of Mac OS X users were not p0wned. But your point is not lost on me.