Anthropic has fully implemented a Know Your Customer (KYC) mechanism on the Claude platform, executed by the third-party Persona Identities.

The official term is "routine integrity checks," with the actual purpose being to prevent abuse, enforce platform policies, and meet compliance requirements. For users in unsupported regions (especially mainland China), this operation has directly become a "ban account bomb." Once risk control is triggered, the account is highly likely to be permanently disabled, and Pro/Max subscriptions will be wasted.

The Biteye team has quickly organized the most practical prevention, preparation, and handling strategies for account bans available online, helping you minimize risks and maintain productivity! The core principle: building a trust environment. Don’t wait for the pop-up to panic; follow this "trust environment" setup now, and you can avoid disaster 90% of the time.

1. How to prevent triggering KYC and account bans?

The core of Claude's risk control is to catch "non-human behavior" + "abnormal environments." Frequent IP hopping, mixed device usage, inconsistent payments = direct judgment of "account theft/bulk operations."

1. Fixed network environment, refuse IP hopping

High-risk behavior: frequently switching nodes, changing shared data center IPs, using cheap proxies.

Biteye reminds: The risk control system quickly judges "non-human." It is recommended to stick to one person per IP, one device per use. Use a dedicated native residential IP, fixed long-term. Stability > speed.

2. Device and environment isolation

High-risk behavior: logging in simultaneously on mobile apps + web versions, WebRTC leaking real location, or app traffic directly connecting to the carrier.

Biteye reminds: If the registration location, login IP, and physical location do not match, it equals immediate ban. It is recommended to avoid using mobile if possible! Prioritize the computer web version. If mobile operation is necessary, use an overseas physical card + clean proxy + fingerprint browser to completely isolate the environment.

3. Consistency of payment information

High-risk behavior: unknown source of virtual cards, billing address and IP country severely mismatched, domestic multi-currency credit cards.

Biteye reminds: It is recommended that Pro/Max recharges must use legitimate overseas virtual cards, with the billing address 100% consistent with the current IP's country/state.

4. Developer/API call control

High-risk behavior: high-frequency requests from data center IPs, network fluctuations causing packet loss.

Biteye reminds: New accounts should maintain low-frequency calls in the early stages to accumulate "trust value," using stable dedicated lines to ensure zero packet loss. Following this will generally avoid triggering without cause.

Special reminder: Significant differences between old accounts vs. new accounts

Old accounts (long usage time, normal historical behavior) have indeed accumulated a certain "trust value," providing a clear buffer compared to new accounts. Even if you previously switched regions frequently without issues, it does not mean you can continue to hop frequently. After the large-scale rollout of KYC in April 2026, the system has begun to jointly scan historical and current environments, and old accounts may also be required to verify or be directly disabled due to abnormal environments. The core principle remains: stability > speed; the sooner you stabilize the environment, the safer it is.

2. What to prepare if KYC verification pops up?

Don't panic! Verification usually completes within 5 minutes. Prepare according to the following checklist for the highest approval rate:

1️⃣ Submit compliant identification documents

The following are the official requirements from Claude

2️⃣ Verification device

A mobile phone or computer with a high-definition camera is required, and it must be a real-time live selfie (static photos cannot be uploaded).

(Privacy note: Data is encrypted and stored by Persona, and Anthropic will not use it for AI training or marketing, only for compliance.)

3️⃣ Small Tips: Community feedback indicates that even if the passport + live verification passes, if the system detects the actual usage location in "unsupported regions," the account may still be disabled after verification!

3. What to do if the account is unfortunately banned? Complete appeal strategy

If you see "Your account has been disabled" or "Your organization has been disabled," you can follow these steps:

1. Submit an official appeal

Fill out the official appeal form or email support@anthropic.com

Template for communication (copy this): "I am a real human user, always using it for compliant academic research/development work, and have not violated any policies. Due to network fluctuations/device anomalies leading to misjudgment, I kindly request an official investigation to restore my account."

2. Request a refund (exclusive for paid users)

Was your account banned right after recharging?? Email to request a refund at billing@anthropic.com

Template for communication: "The account was disabled without any warning, and I just completed the subscription; I request a full refund."

Currently, community feedback indicates that the success rate for appeals is usually <20%, and refunds require ongoing email communication.

3. Golden re-registration rules

• Completely clear browser cache + switch to a fingerprint browser

• Must use a brand new clean fixed residential IP

• Use an overseas physical mobile number to receive codes (be very careful about the region; if you are in a restricted area for Anthropic, even if you can receive codes, the probability of being banned later is still very high), avoid being pulled into a black platform

• Maintain consistency in IP + payment card + device environment throughout the process

• If the account is banned, the cost of re-registering is significantly lower than appealing and providing supplementary materials

3. Look for alternative solutions

If the official risk control is too strict, it is recommended to switch directly to third-party API aggregation platforms or reliable intermediaries that do not require KYC, support the latest Claude models, have smooth payments, and no regional restrictions, ensuring project progress is not delayed.

Biteye summary:

This time, Claude KYC is part of Anthropic's trend towards compliance, but for Chinese users, building the environment is the core competitiveness. By executing the guidelines in advance, you can generally stabilize your account; if triggered, don’t panic, following the process can still save you. After all, productivity comes first, and accounts second. Protecting your Claude is protecting your workflow!