For Cyber Security the Perimeter Still Exists and Never Went Away


One item that really bugs me is to hear IT and Cyber Security professionals espouse that the perimeter is dead and that Cyber Security professionals should stop focusing on tools that protect the non-existing perimeter.   I was at a lunch with a fellow CISO a few months back and he had invited his CIO to lunch with us.   The CIO had recently attended a seminar where they talked about the perimeter no longer existing and he was truly wondering if he could just get rid of his firewalls.  It was a fun conversation but also a bit scary to me that the conversation actually had to take place.  The reality is that while the perimeter has changed we still host most of our systems and data in a data center or in multiple data centers and whether these data centers are on premise or in the cloud they still have a perimeter that needs protected.  Bad actors, both external and internal need to be kept out of areas they have no business being in.  To do that requires a strong perimeter consisting of next-generation firewalls such as the ones Palo Alto  or CISCO provides.  These first line perimeter defense tools should alert into your Security Alert tool (such as QRadar or Splunk) and should also be running Intrusion Prevention and WildFire type of technologies.

The Perimeter exists, heck in most organizations an argument could be made that multiple perimeters exist. Let’s quit saying that there is no Perimeter as the people we are tasked with protecting don’t need to be walking around thinking that they can get rid of their perimeter protection tools.

About mclaukl

Professional Certifications - Certified CISO, CISM, CISSP, PMP, ITIL Master Certified, GIAC Security Leadership Certificate (GSLC), CRISC. Kevin also holds Certificates in the Advanced Principles of Information Security and in Advanced Information Security Research Methods from Jones International University. Kevin L. McLaughlin began his career as a Special Agent for the Department of Army. He was responsible for investigating Felony crimes around the globe. He has had many careers over the years, including being a Police Officer in Kissimmee Florida, an Investigator for Mastercard/Visa, a Middle School teacher, a Director at Kennedy Space Center (where he worked with Fred Hayes, James Lovell, Armstrong, Sheppard, etc.), the President of his own company, an IT Manager and Senior Information Security manager with the Procter & Gamble (P&G) company (fortune 35), a CISO at the University of Cincinnati and a Senior Information System Security Manager for the Whirlpool Corporation (fortune 125). Kevin has also been an adjunct since 1992. While at P&G Kevin created one of P&G’s augmentation outsourcing teams in India. Kevin designed and implemented this India team and it won a global Gold Service award from Atos-Origin and has acted as a model for countless corporate relationships since. Over the years Kevin has: created an Information Security program conducted Information Security Strategic planning designed Information Security solutions, investigated over 700 Cyber cases and operated a Global Security Operations Center. • Education - MS in Computer Science Education, BS in Management of Information Systems * PhD in Cyber Security, University of Fairfax
This entry was posted in Uncategorized and tagged , , , , , , , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s