Healthcare IT Security Robot4d ago

DATE: March 13, 2026 at 04:35PM
SOURCE: HEALTHCARE INFO SECURITY

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How #MainLineHealth Secures Devices With #Microsegmentation https://t.co/R1Wa8QLoRN #elisity #HIMSS26

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Peter J. WelcherDec 16
New blog posted discussing various forms of “micro-segmentation”, and use of tags instead of IP addresses in ACL’s. With callout to a great post about flows by Daniel Dib with some great comments. https://www.linkedin.com/pulse/microsegmentation-versus-nac-ip-based-acls-peter-welcher-rtoae/
Tags: #PeterWelcher #CCIE1773 #Security #MicroSegmentation #NAC #SecurityGroupTag #Cisco #Elisity #ForeScout #Flows
Peter J. WelcherApr 10, 2025
I posted the final Microsegmentation Series blog: Pete’s Take: Microsegmentation 04: Building a Security Policy. URL: https://www.linkedin.com/pulse/petes-take-microsegmentation-04-building-security-policy-welcher-fk5je/ #PeterWelcher #CCIE1773 #Microsegmentation #Elisity #Cisco #PolicyComponents #SecurityPolicy
Pete’s Take: Microsegmentation 04: Building a Security Policy

This is the fourth and likely last blog in my series about Microsegmentation. I've been= using Elisity’s product and training/other graphics to make key points.

Peter J. WelcherApr 2, 2025
Just posted a new blog: Pete’s Take: Microsegmentation 03: Discovering Traffic Flows. URL: https://www.linkedin.com/pulse/petes-take-microsegmentation-03-discovering-traffic-flows-welcher-bykae/ Tags: #PeterWelcher #CCIE1773 #Microsegmentation #Elisity #Cisco #FlowDiscovery #TrafficAnalytics #NetworkTraffic
Pete’s Take: Microsegmentation 03: Discovering Traffic Flows

This is the third blog in my series about Microsegmentation, using Elisity’s product (and training/other graphics) to make key points. This blog covers discovering traffic flows, and the powerful tools built into the Elisity GUI to help you do that, also serving to help you build policy.

Peter J. WelcherMar 25, 2025
New blog posted: Pete’s Take: Microsegmentation 2: What’s On My Network? https://www.linkedin.com/pulse/petes-take-microsegmentation-2-whats-my-network-peter-welcher-xp1ie/ #PeterWelcher #CCIE1773 #Microsegmentation #Elisity #Cisco #DeviceDiscovery #IdentityGraph #Connectors
Pete’s Take: Microsegmentation 2: What’s On My Network?

This is the second blog in a series about Microsegmentation, using Elisity’s product (especially training/other graphics) to make key points. First blog in this Microsegmentation series: Introduction to Microsegmentation.

Peter J. WelcherMar 18, 2025
Just posted: new first blog in a Microsegmentation series. Link: https://www.linkedin.com/pulse/introduction-microsegmentation-peter-welcher-ngjfe/
#PeterWelcher #CCIE1773 #Microsegmentation #Elisity #Cisco
Introduction to Microsegmentation

This blog begins an introductory series of moderately long blogs, covering key aspects of Microsegmentation and Zero Trust. The key point to Microsegmentation and Zero Trust is that security is tied to device type, identity, trust status, and other attributes, as opposed to IP address or MAC address

Peter J. WelcherNov 11, 2024
Posted: Elisity Adds Functionality, about their presentation at Network Field Day 36. #PeterWelcher #CCIE1773 #Elisity #NFD36 #NetworkFieldDay #Security https://www.linkedin.com/pulse/elisity-adds-functionality-peter-welcher-dzbze/
Elisity Adds Functionality

Elisity is a startup specifically targeting IOT/OT security and ease-of-use, especially focused on healthcare, but also manufacturing and other verticals. Not that the product might not also be useful in other markets.

Peter J. WelcherOct 17, 2024
Just posted an article about the upcoming Network Field Day 36, which I'll be a delegate at. Summary info plus lots of links to prior TFD/NFD presentations by the vendors. Looking forward to being there in 3 weeks!
#PeterWelcher #CCIE1773 #TechFieldDay #NetworkFieldDay #NFD36 #pathsolutions #aviz #meter #elisity #arista #itential https://www.linkedin.com/pulse/looking-forward-nfd36-peter-welcher-qtobe/
Looking Forward To NFD36!

This is the first of what I hope will become many blogs here on LinkedIn, as I will be using LinkedIn as the new home for my blogs. Before you ask: without the overhead of maintaining e.

Peter J. WelcherOct 2, 2023
Yet Another Blog: #Elisity Update (Version 15.0). This got a bit delayed, see their website for minor revisions since 15.0. #BlueAlly #NetCraftsmen #CCIE1773 #Security #Identity https://netcraftsmen.com/elisity-update-version-15-0/
Elisity Update: Version 15.0

This blog is a follow-up to two prior blogs about Elisity. I suggest reading them first if you have not already done so. This blog covers the recently announced Elisity Version 15.0 release…

NetCraftsmen, a BlueAlly Company
Peter J. WelcherAug 14, 2023
My second #Elisity blog was just posted, with more details and screenshots about their campus security product. #ZTNA #Security #IOT #IOmT (medical things) #OT segmentation: https://netcraftsmen.com/taking-a-closer-look-at-elisity/
Taking a Closer Look at Elisity

This blog follows a previous blog about Elisity, which described its position in the Zero Trust / ZT / ZTNA market, doing ID/device type / context-based authentication and internal access controls.

NetCraftsmen, a BlueAlly Company