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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.).

IT 103
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How to improve network resilience with NS1 Connect Filter Chains

IBM Big Data Hub

IBM NS1 Connect Filter Chain™ technology uses the power of DNS to automatically reroute traffic between service providers when there is a network service disruption. On the NS1 platform, filter chain configurations are applied to individual records within DNS zones. Each filter chain uses a unique logic to process queries.

Cloud 87
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Phorpiex botnet sent millions of phishing emails to deliver LockBit Black ransomware

Security Affairs

Email Filtering : Implement email filtering solutions such as spam filters to block malicious messages. Reference the provided resources for establishing DMARC authentication. Ransomware Mitigation : Refer to available resources for ransomware mitigation techniques and strategies.

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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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RSAC Fireside Chat: How a well-placed ‘NGWAF’ can staunch the flow of web, mobile app attacks

The Last Watchdog

We discussed why filtering web and mobile app traffic remains as critical as ever, even as cloud migration intensifies; for a full drill down, please give the accompanying podcast a listen. They must make ongoing assessments about IT infrastructure increasingly spread far and wide across on-premises and public cloud computing resources.

Cloud 214
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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. TCP lacks stateful checks so a DDoS attacker might send a large number of unsolicited SYN-ACK responses and a server would tie up resources attempting to match the packets to open communication.

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Cuttlefish malware targets enterprise-grade SOHO routers

Security Affairs

The malware creates a proxy or VPN tunnel on the compromised router to exfiltrate data, and then uses stolen credentials to access targeted resources. This approach enables threat actors to potentially copy data from cloud resources lacking the logging or controls commonly present in traditional network perimeters.