How does WeChat check whether the passport has been blacked out?

Wechat did not provide a service to check whether the passport was hacked. You can query in the following ways:

1. Direct contact with the people of China and China's embassies and consulates abroad. Contact telephone numbers can be found on the official website of the Ministry of Foreign Affairs of People's Republic of China (PRC).

2. Inquire at the local immigration office or the entry-exit department.

If the passport is hacked, it is generally because it violates relevant laws and regulations or is suspected of illegal activities. Please abide by the laws and regulations of China and avoid any illegal or high-risk activities.