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What Is Stateful Inspection in Network Security? Ultimate Guide

eSecurity Planet

Stateful inspection is a firewall feature that filters data packets based on the context of previous data packets. This important feature uses header information from established communication connections to improve overall security. Table of Contents Toggle How Does Stateful Inspection Work? Stateless protocols (UDP, HTTP, etc.)

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What Is Packet Filtering? Definition, Advantages & How It Works

eSecurity Planet

Packet filtering is a firewall feature that allows or drops data packets based on simple, pre-defined rules regarding IP addresses, ports, or protocols. Once a type of firewall, packet filtering now provides a fundamental feature of nearly all firewalls and some network equipment (routers, smart switches, etc.).

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What Is DNS Security? Everything You Need to Know

eSecurity Planet

The DNS protocol was designed for use within a firewall on a secure network, and by default will communicate in plain text. A modern computing environment includes branch offices, remote workers, and mobile devices that must reach DNS servers from outside the firewall.

DNS 88
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What Is a Circuit-Level Gateway? Definitive Guide

eSecurity Planet

A circuit-level gateway (CLG) is a firewall feature that acts as a proxy and filters packets based on session information. CLGs are important because they provide specialized security filtering and prevent the discovery of IP addresses and open ports on CLG-protected devices.

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Vulnerability Recap 4/15/24 – Palo Alto, Microsoft, Ivanti Exploits

eSecurity Planet

You can strengthen your cybersecurity defenses by using reliable antivirus software, firewalls, intrusion detection systems, and virtual private networks (VPNs). These issues affect over 91,000 exposed machines, putting them at risk of DDoS assaults, account theft, and malware infestations.

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October 2023 Patch Tuesday Includes Three Zero-Days Flaws

eSecurity Planet

Microsoft’s Patch Tuesday for October 2023 covers a total of 103 CVEs, including three zero-day vulnerabilities affecting WordPad, Skype and the HTTP/2 “ Rapid Reset ” DDoS vulnerability. CVE-2023-41763 , an elevation of privilege vulnerability in Skype for Business with a CVSS score of 5.3

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5 Linux malware families SMBs should protect themselves against

Malwarebytes

There’s no shortage of reasons why an SMB might use Linux to run their business: There are plenty of distros to choose from, it’s (generally) free, and perhaps above all — it’s secure. But unfortunately, there’s more to Linux security than just leaning back in your chair and sipping piña coladas. Cloud Snooper. How it works.

Malware 101