Most enterprise chief information security officers (CISOs) are very familiar with infostealers, a pervasive breed of malware that quietly gathers website credentials, passwords, and other financial information from a compromised user account. Infostealers are nothing new; they have been a common tool in the threat actor's toolbox since 2006, when the Zeus online banking Trojan was first spotted in the wild.

Learn the basics for protecting your business from cyber attacks. The business cybersecurity resources in this section were developed in partnership with the National Institute of Standards and Technology, the U.S. Small Business Administration, and the Department of Homeland Security.