IT security

You can improve your security by simple means

Awareness

Be a little suspicious and aware of what you get in your mailbox, popup windows, calls and texts. Are they a bit "off" or unexpected?

Two-factor

If a service provider offers it. It will greatly improve your security online.

Antivirus

No matter what operating system you are running, use antivirus. 

Lockdown

Lock down your online accounts, be it Facebook, Instagram, Twitter,  Apple or Google accounts. 

Passwords

Make good passwords. Easy for you to remember, the longer, the better.
You can use a passwordsafe and/or a manager to make things easier for you.  

Encryption

If your operating system offers encryption, use it. Make a backup before encrypting your system, and make sure to make a recovery USB key.  

Backup

Buy an USB hard drive and backup your data. Do it regularly. Remember to backup  your phone and tablet too. 

Update your computer

When updates for operating system and programs become available, install them.