[SlowMist Founder Yu Jian: Coinbase Has Taken Down the Page Requesting Users to Enter Plaintext Mnemonics] Odaily Planet Daily News – SlowMist founder Yu Jian posted on the X platform, stating that Coinbase has taken down the page requesting users to enter plaintext mnemonics. He pointed out that the security model of online web pages for wallets is very low, far inferior to extensions or apps. The practice of collecting plaintext mnemonics on online web pages is easily mimicked and learned by phishing websites, and it has long been a common phishing tactic.