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How Enterprises are Attacking the Cybersecurity ProblemConcerns over supply chain vulnerabilities and attack visibility drove some significant changes in enterprise cybersecurity strategies over the past year. Dark Reading's 2021 Strategic Security Survey showed that many organizations are staying the course regarding the use of a mix of attack prevention and threat detection technologies and practices for dealing with cyber threats.
Incident Readiness and Building Response Playbook
In this special report, learn the Xs and Os of any good security incident readiness and response playbook.
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User Rank: Strategist
1/30/2019 | 3:40:31 PM
It may be fashionable to claim there is no longer a network perimeter but I still strongly favor using the border router as a "garbage filter".
The BOGONs list? - Drop them all. Invalid TCP flag combinations - Drop. No Telnet in your environment? No FTP? No RDP? - Block them all at the border router.
As mentioned in the post, the NGFW should take care of the deep packet inspection for only the traffic you potentially want inside your network. That firewall should see very little traffic except for the known IPs, ports and protocols which are candidates to be allowed all the way in.
And an outbound ACL (a.k.a. egress filtering) is a very powerful weapon against data exfiltration and many types of malware. You may still have a Trojan but if it can't phone home......