Help! How can i protect my data?

I met a tech guy on a dating app. We didnt know anything about each other ( or I thought so ) until the point he told me he knows who my ex was ( he told me his full name ), who am i, also my full name. I was shocked. When i asked how he did it, he said its 2023, everything is accessible. He said I should look up social dilemma on netflix, so i know what …

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