Which action is recommended for maintaining online safety?

Using strong passwords is a crucial action for maintaining online safety. Strong passwords are complex and unique to each account, making it much more difficult for cybercriminals to guess or crack them. A strong password typically includes a mix of upper and lower case letters, numbers, and special characters, and is of sufficient length.

By using strong passwords, individuals can significantly reduce the risk of unauthorized access to their accounts and personal information. This practice is a foundational aspect of digital security because many data breaches occur due to weak or easily guessable passwords. Implementing strong passwords not only safeguards individual accounts but also contributes to overall online safety, as it helps to protect sensitive information from falling into the wrong hands.

In contrast, the other options mentioned undermine online safety by promoting practices that increase vulnerability to cyber threats. For example, using the same password across multiple accounts can lead to widespread compromise if one account is breached. Not utilizing two-factor authentication additionally removes a critical layer of security that can help protect accounts even if a password is compromised. Sharing personal information without caution can expose individuals to identity theft and other risks.