On November 29, on-chain detective ZachXBT reminded users to strengthen their account and fund security. He stated that currently, Yubico (security key), Proton (email service), and Tutanota (email service) all have discount promotions. Proton supports Bitcoin payments, while Tutanota can purchase gift cards through its official partner ProxyStore using Monero (XMR). In addition, some products from hardware wallet brands Trezor and Ledger are also on sale.
ZachXBT advises users to avoid using Gmail or SMS 2FA (two-factor authentication) and switch to a security key or hardware wallet for storing funds as soon as possible. He emphasized the need to purchase security devices through official channels to prevent the safety risks brought by counterfeit products, reminding users that many security incidents are entirely preventable.