Unless the entire exchange data is hacked, nothing much to worry about.
Nothing to worry about? Tell that to people who have been victims of phishing attacks because one exchange or service experienced a data breach, and now their personal information is out in the dark web. Or Ledger customers that have been constantly harassed by phishing links for years now, because ledger's entire database was hacked. There is definitely something to worry about if your personal information is in public.
Oh yes, I didn't thought about that aspect. It's true! If the public information is available in the public domain it is a matter of concern.
I am very restrictive while it comes to KYC and that's why I didn't choose to claim my Pi tokens while I had a quite a significant amount as per today's conversion rate. I let go almost a thousand dollars just because I didn't want to do KYC with some unknown international entity.
Sorry, I really didn't thought through this!