Information leakage of the secondary card will affect the primary card.

The information leakage of the secondary card will not directly affect the primary card, but there may be the following risks:

1. Although the primary card and the secondary card are different cards, they are related in charge. If the information of the secondary card is leaked, the account information of the secondary card may be stolen, but the account information of the primary card is usually unaffected.

2. Some functions of the secondary card may be restricted. If the account of the secondary card is abnormal, it may affect the normal use of the secondary card, but usually it will not affect the normal use of the primary card.

In a word, the information leakage of the secondary card may not directly affect the main card, but there are certain potential risks. In order to protect personal information and account security, it is recommended to take timely measures, such as modifying passwords and reporting losses.