This is a new one for me, seeing it first time today. The button opens a Telegram channel (see t.me link in image) that may be served by a bot or maybe by scammers. I didn’t follow but I guess it would work best with a bot to “validate” new arrivals by asking for the passphrase of your existing wallet: so it can “migrate” you to the bogus wallet (stealing all your funds first) 
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