How secure is the id info in the Get Record logic?

Question
1

Is it safe enough to store the firebase Document ID as static text or shall I store the ID in a pageVar as a best (safer) practice?
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2

Hi,

You may find this article useful: Security with Composer Pro - Best practices

3

Thanks, this link answers a couple of general questions but gives no concrete solutions.
In my specific case, I have no options but call that ID to retrieve the right document.