When logging into my Mac, I got an alert that an attempt by "Dropbox, Inc" to modify something in my system, was blocked, and that I should open the "Security&Privacy" in my System Preferences to enable it.
Indeed, I found there a message 'System software from developer 'Dropbox, Inc.' was blocked from loading.
I can't find any hint that this is really coming from Dropbox, or what modification would actually be performed, if I would allow this, and therefore keep it blocked.
How can I find out, whether this was not a fishing attempt, but legally came from Dropbox? I also would like to find out, what this changes would actually do.