According to CoinMeta and OneMillion.AI, recently many users with IDs Claude and ChatGPT have reported that their accounts have been banned. A user with ID Claude had their account banned immediately after submitting a Chinese passport, while since November 7th, there have been concentrated complaints about account bans involving free users, as well as users with IDs Plus, Pro, and corporate accounts. Claude has been implementing identity verification since April, requiring users to upload passports and other documents through a third-party platform Persona and take selfies for identity verification. Since the end of October, some old users have suddenly encountered verification requirements. Anthropic has prohibited the use of Claude in regions such as mainland China that are not supported; the system identifies risk signals and requires verification, and failure to pass the verification will result in account bans. OpenAI also imposes restrictions on multiple account usage; associating too many subscriptions with the same bank card can prevent new accounts from purchasing memberships, and logging into too many paid accounts from the same device can also trigger these restrictions. Both companies have recently updated their usage policies: Anthropic announced new regulations on October 8th that took effect on November 12th, and OpenAI announced new regulations on October 21st, requiring intermediary platforms to obtain official approval in advance, which took effect on November 20th.