There are many breaches that occur with people’s personal computers especially when there are many scammers that attempt to gain access to a person’s computer and steal money. Generally, ensuring the websites that you are using have the lock near the URL will ensure you are using a secure website and it can be trusted. Having an antivirus installed on your computer is one way to gain a level of security of your computer that is better than having nothing at all. There are various virus scanning programs that exist like Malwarebytes that are able to scan your computer in order to find programs that seek to harm your computer or steal your data. Windows also includes an anti-malware scanner that you can run in virus & threat protection in the settings. As long as you know the source of anything that you would be downloading it is generally safe to do so. If you notice any of the following issues with your computer, it may be infected with a virus:  slow computer performance (taking a long time to start up or open programs), problems shutting down or restarting, missing files, frequent system crashes and/or error messages, unexpected pop-up windows, new applications (toolbars, etc.) that appear without you downloading them, overworked hard drive (the fan makes sounds and seems to be whirring and working hard when you aren’t doing much), emails that send autonomously from your accounts, browser lag or redirects malfunctioning antivirus programs or firewalls. Another good rule of thumb is to never open an email or attachment unless you know and trust the sender. Oftentimes, hackers will use a friend’s name as the sender or use “Re:” in the subject line to trick you, so double check the actual email address to see if you recognize it.