You can start by being aware that you want to work safely. This question has succeeded, so let's mention the next easy steps right away. Use legal software! Make sure you have a good antivirus/antimalware solution on your PC (pay for it too; no freebies). Always make sure you have the most recent versions and updates for your system and software. Also make sure you have the latest security patches and updates. Use a password manager (like LastPass; free for private use) and do not use the same passwords for different systems and accounts. Use MFA (multi factor authentication) for all services/accounts that are online. We are far from there yet, but with these measures you are not a low-hanging fruit for hackers and certainly not for the majority of online crime.