The thing is, I’m usually careful about where I enter my credit card information. However, my bank called me today to say they’d detected several suspicious transactions on one of my cards over the past month. No money was withdrawn because the bank blocked the transactions. I tried to find where I might have entered my card details, but I couldn’t find it. What worries me, though, is that I might have done this on a site where my information could have been misused. Which antivirus product...