Generally, they also have better customer service and technical support than free internet security. Paid-for security software suites, such as McAfee Antivirus Plus, often come with extra features such as parental controls and tools for maintenance, back-up and recovery that can help you restore your computer in the event of a disaster. Depending on how many devices you want to protect, your security package is likely to cost between £20 and £60 for one year. Many people keep their computer safe by paying for a security suite (almost half of Which? members, according to our recent survey), which will usually include antivirus software, protection against scams and a firewall. Useful extras: Identity protection, parental controls, back-up and tune-up tools.Flexible: Pay a little extra to cover multiple devices.Top protection: Comprehensive defence against fraudsters, viruses, plus anti-phishing to stop scammers.