When Lauren Higgins tried to sign up for Spotify's premium plan on her iPhone, she was irked that the music service asked for $13 a month, $3 more than the gift subscription she had given her boyfriend.
A year ago, Ashley Madison, a website that facilitates extra-marital affairs, lost customers' personal information to hackers, who have also recently accessed personal information held by online retailer eBay, Sony and LinkedIn, among others.