Sourced from: https://blog.malwarebytes.com/101/2015/10/10-ways-to-protect-against-hackers/
No one should assume that they are safe from hackers. Hackers keep on improving their tactics hence they need to improve security measures for your computer. Do not disable updates on your computer. Ensure that you are using the latest browser.
Use the latest version of your web browser
Web browsers are vital applications, but just like other software, they can contain bugs.
Sourced from: http://home.bt.com/tech-gadgets/computing/seven-easy-tips-to-protect-your-pc-from-hackers-and-malware-11363942012065
Sourced from: http://www.infoworld.com/article/2612634/security/security-11-sure-signs-you-ve-been-hacked.html