egrizzly said: You folks all said something similar. We no doubt have to be behind either a router with locked down access lists or behind a firewall. How did you guys do it in the past?
egrizzly said: ...and yeah, I gotta admit, this CISO is different, lol. Seems like he's trying to flex his muscles.
TechGromit said: Isolated network is what I'm thinking. A Data Diode would allow you to transmit info one way if you need status updates. That's how our power plant runs, the Plant network is completely isolated, but can still report plant status information to other departments thru the diode. Nothing is allowed to directly access the isolated network from the outside, not even with firewalls, one way traffic only.
JDMurray said: egrizzly said: You folks all said something similar. We no doubt have to be behind either a router with locked down access lists or behind a firewall. How did you guys do it in the past? You gotta think security segmentation in layers starting with the Layer 8 humans and their applications and on down to the Layer 1 hardware. Then there is the business segmentation in which you think about all the external entities that are needed to create/modify/transport/process/store whatever it is you are trying to protect in that "secure enclave" and how it supports the org's ability to do business. You can see that this is a project requiring multiple people with multiple subject-matter-expertises. egrizzly said: ...and yeah, I gotta admit, this CISO is different, lol. Seems like he's trying to flex his muscles. All new C-levels are expected to make an immediate mark on their new org. After all, a new C-level is rarely hired to "maintain the status quo." Instead, a new C-level is a chance to make things better for the org by expanding scopes, changing paths, tightening belts, and modernizing the corporate culture. There are some different challenges if the new C-level is replacing a former C-level (i.e., a back-fill) or is filling a brand new C-level position just created within the org (e.g., an org's first CISO). It really helps if you gone through multiple C-level transitions in multiple orgs over many years.