There are many techniques used by hackers to steal passwords from online accounts. The following are some common methods of attack.： ### 1. **Phishing attack (Phishing)** -**Description**: Hackers use fake emails, text messages, or websites to trick users into entering their account information (such as user names and passwords). -**Example**: A fake bank login page or email that claims to require users to update their account information. ### 2. **Brute Force Attack (Brute Force Attack)** -**Description**: Hackers use automated tools to try all possible password combinations until they find the correct password. -**Defense**: Use complex and long passwords and enable account locking mechanisms. ### 3. **Dictionary Attack (Dictionary Attack)** -**Description**: Hackers use a list of common passwords (such as words in a dictionary or common passwords) to try. -**Defense**: Avoid using common words or simple passwords and use randomly generated passwords. ### 4. **Keylogging (Keylogging)** -**Description**: Hackers use malicious software to record users' keyboard input to obtain passwords and other sensitive information. -**Defense**: Install and update anti-virus software regularly to avoid downloading suspicious files. ### 5. **Man-in-the-Middle Attack (MITM)** -**Description**: Hackers insert themselves between the user and the server, intercept and steal the user's login information. -**Defense**: Use HTTPS to encrypt the connection and avoid using unsecured public Wi-Fi. ### 6. **Social Engineering (Social Engineering)** -**Description**: Hackers use psychological manipulation to trick users into revealing their passwords or other sensitive information. -**Example**: Posing as a technical support staff, the user is required to provide a password. ### 7. **Password Spraying (Password Spraying)** -**Description**: Hackers try to attack a large number of accounts using a small number of common passwords, rather than multiple attempts on a single account. -**Defense**: Use unique and complex passwords and avoid common passwords. ### 8. **Credential Stuffing (Credential Stuffing)** -**Description**: Hackers used a combination of user names and passwords obtained from other data leaks to try to log in to other websites or services. -**Defense**: Use different passwords on different websites and enable multi-factor authentication. ### 9. **Session Hijacking (Session Hijacking)** -**Description**: Hackers steal the user's session token and then impersonate the user to access the account. -**Defense**: Use a secure session management mechanism to log out of sessions regularly. ### 10. **Malicious software (Malware)** -**Description**: Hackers use malicious software to infect users' devices and steal passwords and other sensitive information. -**Defense**: Keep the operating system and software updated and avoid clicking on suspicious links or downloading unknown files. ### 11. **Password Reset Attack (Password Reset Attack)** -**Description**: Hackers gained access to the account by manipulating the password reset process. -**Example**: By guessing or obtaining the user's email account, the password reset link is triggered. ### 12. **SQL Injection (SQL Injection)** -**Description**: Hackers obtain user credentials in the database by inserting malicious SQL code into the input field. -**Defense**: Use parameterized queries and input verification to prevent SQL injection attacks. ### 13. ** Cross-site scripting attack (Cross-Site Scripting, XSS)** -**Description**: Hackers steal users' session information or credentials by inserting malicious scripts into Web pages. -**Defense**: Strictly filter and encode user input to prevent malicious script execution. ### 14. **Wireless network attacks (Wi-Fi Attacks)** -**Description**: Hackers steal users' login information by cracking or forging wireless networks. -**Defense**: Use strong encrypted Wi-Fi networks and avoid using unsecured public Wi-Fi. ### 15. **Password Leaks (Password Leaks)** -**Description**: Hackers obtained the user's password through a data breach, and then tried to use the same password in other services. -**Defense**: Change your password regularly and use a password manager to generate and store strong passwords. ### Defense measures -**Multi-factor authentication (MFA)**: Even if the password is stolen, hackers require additional verification steps to access the account. -**Strong password strategy**: Use long and complex passwords to avoid reusing passwords. -**Security awareness training**: Educate users to identify and avoid common attack methods. -**Regular updates and patches**: Keep the system and software up-to-date to prevent known vulnerabilities from being exploited. By understanding these common attack techniques, users can take appropriate defensive measures to protect their accounts.