The most common types of appliances are email appliances, unified threat management (UTM) appliances and web appliances. They sit at the gateway between an organization’s IT systems and the Internet, filtering traffic to block malware, spam and data loss.
Email appliances block spam, phishing, viruses, spyware and other malware, and—depending on the solution—also employ content filtering and encryption to prevent the loss of confidential or sensitive information via email.
Web appliances block malware, spyware, phishing, anonymizing proxies and other unwanted applications at the web gateway.
They may also offer tools to enforce Internet use policies.
UTM appliances eliminate the complexity of deploying and managing a variety of point solutions to protect your business against viruses, spam and hackers.