Kaspersky now offers a free antivirus for PC, but do you need it?

Security software firm Kaspersky has just launched a free antivirus for PC users, promising total protection for your files and oversight of your web traffic for malicious activity. The company says it’s happy to offer its service at no charge for those who can’t afford the $50 fee for its paid product – but do you really need a third-party antivirus tool? If, like 500 million others, you’re on Windows 10, you already have Windows Defender built in. Microsoft’s own