You should create strong passwords using capital letters and numbers to prevent hackers from accessing your accounts and personal information. Always keep your passwords private and do not share them with others. When posting photos online, get permission from a parent first and do not include any private details or locations in the images. Hackers can access personal information from websites if it is publicly available, so be careful what you share online. To browse safely, check that website URLs start with "https" and have a lock icon to indicate a secure connection.