Card may look beneficial as a system browser extension for Chrome but it is actually an adware that will display unwanted ads. Once installed, this adware will attempt to commandeer one’s browser search and homepage. Clicking any of these ads will send you to malicious websites to get money from you or infect your computer further. It may also collect your date and prevent you from changing your settings back.
The Card browser extension is usually installed through bundled software without you knowing. You have to remove it immediately.