Create strong passwords: Use a mix of uppercase and lowercase letters, numbers, and symbols that are at least 12 characters long. Avoid using personal information, like your birthday or pet's name, or common passwords like "1234". 
Use 2-factor authentication: This adds an extra layer of security by requiring you to enter a code in addition to your password. 
Update your software and apps: Keep your operating system and applications up to date. 
Use internet security software: This can help detect and remove malware. 
Be careful with links and attachments: Watch out for suspicious links and attachments. 
Check the site's security: Make sure the site is secure before you share any information. 
Be cautious with free Wi-Fi: Use free Wi-Fi with caution. 
Protect your personal information: Don't share your passwords, address, phone number, or school with others. 
Be mindful of what you share: Don't overshare on social media, and be careful about what you post. 
Respect others' privacy: Respect what others say on social media, and don't spread rumors or share hurtful or embarrassing content. 
Report suspicious activity: If you receive a suspicious message or see something online that makes you feel uncomfortable, tell a trusted adult.