When it comes to security, it is common practice to authenticate devices, applications, and users. We even authenticate our phone calls with caller ID. If a phone number is not saved in your phone for example, you’re unlikely to answer the call, let alone fall for a scam from a phone number you don’t recognize. As the number one threat vector to businesses, email must be authenticated to restore trust to business communications. Proofpoint Email Fraud Defense gives you the visibility, tools, and services to authorize legitimate email and block fraudulent messages before they reach the inbox.