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Many users including Reddit user fulber34 stated that he received an email from blockchain.info with the title as “Warning: Don’t get locked out of your blockchain” and it said that the website is upgrading their database, and they require the validation of users wallet details on their website. This can be another phishing scam as a blockchain website would never ask for validation of personal details.
https://coinnounce.com/beware-blockchain-info-phishing-email/
Just giving you a heads-up guys, if you received such email, don't give such informations and check where the email come from.