1. Weak password: a simple and easy-to-guess password is easy to be cracked by others.
2. Phishing websites or malware: Stealing account information by clicking malicious links, downloading malware or visiting phishing websites.
3. Account leakage of other websites: using the same user name and password combination as Nail on other websites, and there is data leakage on this website, hackers use these leaked information to try to log in to your Nail account.
4. Public network: When using an unencrypted public Wi-Fi network, the login information is intercepted by others. Nail punching refers to a well-known mobile office application in China-employee attendance punching on nails. Nail is an intelligent mobile office platform under Alibaba Group, which is mainly used for internal employee collaboration, information sharing, task management and other work scenarios.