It would not be correct to definitively about all platforms, but the security of the vast majority of platforms is at a high level.
Platform developers primarily come up with platforms that enable "everyone" to build; If they cannot provide sufficient security for their platforms, they will have zero users! That means they will lose their jobs entirely. That's why the developers of the tools have to show a high level of sensitivity.
If you still have any doubts in your mind, check the website of the platform/tool you want to use; information on this subject has likely been shared. If you cannot access this information, you can express your concerns and hear first-hand answers from the e-mail addresses they use for support.
Here you can read the security explanations of 3 different platforms.