As you saw the mail did you care to find out if it was true or from a reliable source, you shouldn't be creating panic on people though storing assets in centralized exchanges isn't advisable no matter the guarantee to the security of your assets because hackers can easily get access to it and you definitely lose your cryptos though Binance is a trusted exchange that grant security to assets of people but however, it's still not okay to store assets instead it can be stored in non custodial wallets like electrum.