Internet security software to protect your device is a must, now more than ever in this digital age. But you can boost your level of protection, without downloading an antivirus program or paying for it:
1. Keep your software up-to-date: Threats change daily and new so-called ‘zero-day attacks’ constantly challenge weak points in Windows software. So it's vital you keep your software up-to-date or else it's useless.
For Windows 8, 8.1 or 10, just click on 'Start', go to Control Panel and click the 'Windows Update' icon, where it will show you if there are any updates for your PC. Sadly, Microsoft is no longer releasing updates for Windows 7.
2. Protect your identity online: With more and more of us using the web to bank online and do other sensitive tasks, coming up with solid passwords is more vital than ever.
Don't use the same login for lots of sites. If one falls into the wrong hands, your whole online life is up for grabs. Try picking one and add a few letters related specifically to each site you're logging into and change your passwords (at least for vital accounts) every few months.
3. Don't open unknown email attachments: Most web crime still happens via email, so be on guard when checking yours. Don't open any attachments you're not expecting, or click any random links you find in the text.
4. Only download software from trusted websites: Looking for a piece of software? Find out which company makes it first and then go to its site to get it there, rather than from a third party site found via Google. For smaller free or shareware programs, try using big sites such as CNET Download, rather than just getting them from anywhere that shows up.
5. Understand the main threats and where they come from: Threats to your computer come in different guises with various funky names. Collectively, they're considered malicious software, or 'malware'. The main types are viruses, Trojans and Worms.
Creating and spreading malware is big criminal business. Cracking into your computer can reveal a breadth of information about you. It could include your bank details for ID fraud or for just directly taking your cash. Other uses of malware are to steal the emails in your address book/contacts list to find real addresses to sell to spammers. These unsuspecting people may well then be emailed from your address.
Other viruses allow your computer to be controlled via a 'DDOS' (distributed denial-of-service) attack. This is where a website is closed down due to simulated, simultaneous use by millions or even billions of users. This can be for political reasons, a ransom, to hurt competitors or 'just for fun'.