1. Self-service update: Please log in to ICBC's online banking and select the function of "My Online Banking-Security-Security Management -U Shield-Certificate Download/Update" to update the certificate 90 days before the expiration or 1800 days after the expiration. If it is a universal U-Shield, you can also log in to ICBC Mobile Banking and select the function of "My-Security Center-More Secure Media Management -U-Shield Certificate Update" to update the certificate 90 days before or 30 days after its expiration.

2. Counter renewal: Please bring your valid ID card, bank card with online banking and U shield to any ICBC outlet in China for certificate renewal.

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U Shield is a digital certificate used by China Industrial and Commercial Bank to identify customers under the network environment. It is a kind of physical hardware with intelligent chip, and its appearance is similar to that of flash memory (that is, U disk). After logging in to online banking with user name and password, customers with "U Shield" need to insert "U Shield" into the USB interface of the computer and enter the password of "U Shield" to complete the payment business. Due to the adoption of high-intensity information encryption, strict digital authentication and digital signature technology, "U Shield" can effectively guarantee the safety of customers using online banking. If a customer accidentally reveals his online banking user name and password, as long as the "U Shield" is still in his own hand, or even the "U Shield" is lost, but the password of the "U Shield" is still in his own hand, no one else can enter his online banking to pay. Therefore, "U shield" can effectively prevent various possible risks such as fake websites, hacker theft and password leakage. , which is currently an online banking client.

The predecessor of "U Shield" is the customer certificate USBKey which was launched by ICBC in 2003 and obtained the national patent. Because USBKey can effectively ensure customers' safe use of online banking, in recent years, ICBC has mainly recommended it to customers who conduct large transactions online. In the past two years, nearly 200,000 customers have handled the personal customer certificate USBKey, and handled hundreds of millions of online payment transactions, without a single theft. With the increase of media reports on cyber crimes such as fake websites, "Trojan virus" and "phishing", the demand for customer certificates "U shield" by not only large money traders but also ordinary customers of online banking has greatly increased. Based on this market change, ICBC promoted "U Shield" to all customers and provided a "security guard" for all online banking customers. Therefore, "U shield" can effectively prevent various possible risks such as fake websites, hacker theft and password leakage. It is the highest security payment tool for online banking clients at present.