Having antivirus software isn't enough for protecting your data and devices. It's only the beginning. There's more:
The Importance of Updates
Different makes and models of mobile devices have different processes for updating protection software. The key words to look for when you're inspecting the device for making updates are "Settings" and "Updates." A few more key words are "Apps" and "App Store." The devices are user friendly, so once you're in the Settings function, you should be able to figure it out.
You must go through the passwords of every one of your accounts and make sure they are 1) different from each other, and 2) strong and long.
Now, is it really crucial that you have a long, strong password that gets you into some lame, non-critical site? I wouldn't fret about this as long as there is zero chance that this site can be linked to any personal/private/critical data.
But passwords for accounts relating to your healthcare plan, credit card, bank, blog, social media... these passwords should be re-evaluated to make sure they don't contain keyboard sequences or actual words and names, and DO contain a jumbled mix of characters, not just letters and numbers. At least eight characters long is a good start, but 12 characters are even better.
Every account needs a different password; otherwise, if one account is hacked, all of your accounts are at high risk of getting broken into.
Go into every major account to see if it offers two-factor authentication. You can set this so that you can't log in until you type in a one-time code-that's sent to you via phone call, text or e-mail. The feature may also allow you to log on from your device without the code, but not from other devices without the code.
Other Protective Steps
Never access bank accounts, your medical plan account or other important accounts using public Wi-Fi unless you have encryption software.