UTM devices can perform many functions that help secure a corporation or other organization's network, including Uniform Resource Locator (URL) filtering and application control. If the message appears to be spam or malware, the contents are tagged or quarantined. Some systems look for certain words, others for specific language patterns and others for whole word patterns using a process called Bayesian analysis. Antispam systems use algorithms to detect spam by scanning message content for patterns that are associated with spam. Antispam servicesĪntispam services or spam filters are designed to block or tag incoming email-based attacks by scanning inbound and outbound email traffic for signs of a possible attack. UTMs typically include the following security features. For example, Cisco Meraki appliances use a cloud-based management tool that can be deployed remotely on a per-device basis. In addition to having a firewall, VPN and IPS, every UTM appliance supports network- or cloud-based centralized management. UTM devices are hardware or software that tie together network security features into one simple-to-use, easy-to-manage appliance. By using a proxy server to inspect these packets, the network security device can act as a proxy to reconstruct the content entering the device. Proxy-based inspection is a network security technique that can be used to examine the contents of packets that pass into and out of a network security device, such as a firewall, IPS or VPN server. The devices inspect the data for malicious activity, such as viruses, intrusions and other hacking attempts. Flow-based inspection, also known as stream-based inspection, samples data that enters a network security device, such as a firewall or IPS. A UTM system can help accomplish this by using two inspection methods that address different types of threats: Understanding threats and identifying weaknesses to an organization's network are critical for security. Learn more about the differences between unified threat management and next-generation firewalls here. The major difference between these two firewall types is that a UTM system typically offers more features than an NGFW, such as an intrusion detection system ( IDS) and spam filtering, since it is able to monitor and protect internal networks from intruders. UTM refers to the ability of a single device to perform the functions of an NGFW, firewall and virtual private network ( VPN), while an NGFW is a network security platform that provides a gateway between internal and external networks. NGFWs were originally developed to fill network security gaps left by traditional firewalls and include application intelligence and an intrusion prevention system ( IPS), as well as DoS protection. UTM and next-generation firewalls ( NGFWs) are both firewall technologies serving similar purposes, but they're also different in some key areas. That ends up being more complicated than it needs to be, which is why UTM systems exist. When dealing with these threats, a separate technology is typically required to resolve each issue. This can help because there are five primary kinds of threats that organizations need to protect against: UTM systems combine multiple security features into a single device or software program. Many small and medium-sized businesses ( SMBs) have adopted UTM systems, finding it easier to handle their infosec with a single system, rather than several smaller ones. It protects an entire network and individual users by scanning all network traffic, filtering potentially dangerous content and blocking intrusions. Unlike antivirus tools, a UTM system does not just protect personal computers (PCs) and servers. It combines security, performance, management and compliance capabilities into a single installation, making it easier for administrators to manage networks. Unified threat management (UTM) describes an information security (infosec) system that provides a single point of protection against threats, including viruses, worms, spyware and other malware, and network attacks.
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