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by aasasd
2497 days ago
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There's apparently at least one private company that gathered a database of account-to-number correlations precisely by adding over ten million numbers to Telegram's address books. Here's an article in Russian where one account is deanonymised: https://meduza.io/feature/2019/08/10/kto-takoy-tovarisch-may... Dunno if this is patched by Telegram in any way now. However, I don't see why it would be difficult for a program to add numbers to the contact list incrementally. To my knowledge, computers so far were pretty good at incrementing numbers. And if the contact list length is limited, the question is just how many phone numbers a company can buy. |
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