How does Heroku allow only my git account to push to its created git remotes?

Question

I wonder how Heroku handles the security of git remotes.
When I try to make a new app and deploy it from my local environment,
I use the command

Heroku create

Then, after it created a Heroku git repository, I create a remote from it.

git remote add Heroku 'repository remote link'

Does it mean that anyone can take this remote link and push to the repository?

VonC_6309 · Answer

Any Heroku guide (like this one) start with heroku login.

That means an heroku create is done within that session, and makes you the owner of the remote repository.

You need heroku access:add commands to add collaborators before they can push to your remote repository.