Embracing Security Intent

Embracing Security Intent and IBNS

What is IBNS, and what are its advantages?  Intent-based network security (hereafter “IBNS”) helps with several areas that are of top concern for enterprise security leaders: Software-defined networking New application deployment Moving applications across platforms (e.g. on-prem, cloud, virtual, containers) Orchestrating policies to fit the network need It does this by decoupling intent from implementation. In this model, intent becomes the bedrock of policies and controls, and implementation serves as the device-specific enforcement...

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Blacknurse Low- Volume DOS Attack Targets Firewalls

A type of denial of service attack relevant in the 1990s has resurfaced with surprising potency against modern-day firewalls. Dubbed a BlackNurse attack, the technique leverages a low-volume Internet Control Message Protocol (ICMP) -based attack on vulnerable firewalls made by Cisco, Palo Alto, SonicWall and others, according to researchers. TDC Security Operations Center, a security firm that published a technical report (PDF) on BlackNurse this week, said the attack is more traditionally...

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