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1. Belgrade, November 23rd 2023
Hospital Network Advisory:
Listen to your Metadata!
Josema Cavanillas

2. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Doctor of the network
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3. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Hospital Networks – How?
• From a physical point of view,
hospitals use both Wired and
Wireless networks.
• From a topological point of view, they
follow:
• Star topology
• Ring topology
• Bus topology
• Tree topology (a collection of stars)
• Mesh topology
• Hybrid topology
• Hospital Departments usually have
their own network connected to the
rest but with a privacy
point/gate/restriction.
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4. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Hospital Networks – What?
• In the different segments of a hospital
networks many different devices can
be found:
• High precision image devices
• Medical measurement devices
• Storage devices
• Printers
• Computers / Laptops
• Working tablets
• Other Environment Sensors
• CC Cameras
• …anything
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5. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Hospitals in Europe - Sizes
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• Currently there are 24.262 hospitals in Europe (meaning EU+non EU)
(source: Statista 2023)
• 9.047 of them in Eastern Europe
• 1.242 hospitals in Poland
• 350 in Serbia: The public healthcare network in Serbia includes a total of
350 healthcare institutions, including 158 primary healthcare entities, 128
secondary level institutions (40 general hospitals and 34 special hospitals
and rehabilitation centers), four clinical centers, and four military
healthcare institutions. (source: International Trade Administration)
• Hospitals large and small:
• Small – less than 100 beds
• Medium – between 100 and 500 beds
• Large – 500 or more beds
• Very, very large hospitals (1,500 and on) are usually university hospitals
• However, beds is just a parameter – size and complexity of a hospital is
not necessarily directly related to beds.
• Only 21 hospitals in Europe have more than 1500
beds, and 6 more than 2,000 beds:
• Belgrade - The University Clinical Centre of
Serbia (abbr. УKЦС / UKCS) – 3,150 beds
• Prague – Motol University Hospital – 2,410 beds
• Rome – Agostino Gemelli University Polclinic –
2,300 beds
• Freiburg - University Medical Center Freiburg –
2,179 beds
• Ljubljana – Ljubljana University Medical Center –
2,138 beds
• Geneva – Geneva University hospitals – 2,019
beds

6. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Hospitals in Europe - Trends
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• Identified trends:
• Reduction of number of hospitals:
• Closure/revamping of old hospitals
• Optimization of care in rural areas
• Enablement of transport means
• Reduction of hospital size average
• Walking towards personalized care
• Walking to optimization of management
• Abandonment of the mega-hospital model
• Newly built hospitals are small and hi-tech
• Medical specialization is promoted
• Hospital grouping is promoted

7. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Hospital Network – Who?
• From large IT Departments…
• … to one person, a “Jack-of-all-trades”
• Responsible for:
• Network continuity
• Backup
• Printers
• PC’s workplace
• Hospital Applications
• Security
• Connection to other centers
• Innovative changes in the network
• Solving crises in an emergency mode
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8. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Who are we?
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We are the Atos group business
leading in managed services,
focusing on hybrid cloud
infrastructure, employee experience
and technology services, through
decarbonized, automated and AI-
enabled solutions.
We are a 49 000-strong team with a
clear ambition: to apply digital
technology to advance what
matters for our clients and society at
large in 69 countries.
With our passionate
experts and world-class
partners, we design digital solutions
from the everyday to the mission
critical — in artificial intelligence,
hybrid cloud, infrastructure
management, decarbonization and
employee experience. Our aim? To
deliver a meaningful impact for our
clients and society at large. It’s what
we call the power of we.
69
Countries of operations
49 000
People across the globe
1 200+
Global & diversified customers
across industries
Global Leader
Across IT Infrastructure, Cloud and
Digital Workplace
€5.4bn
FY 2022 Revenue
25+ years
Empowering CIOs for trusted mission-critical
operations
Josema Cavanillas, Head of Hybrid Cloud & Infrastructure Technology Consulting

9. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
How do we support hospital networks?
Three service lines
• Network Advisory
• Implementations upon Demand
• Managed Operational Services
• We take care about continuity
• We take care about connection to cloud
• We take care about new hospital software and customization
• We take care about backups
• We take care about workplace
• We take care about security
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10. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Network Advisory – the entry point
• We insert a passive device in the network.
• Thanks to an AI software provided by Atos & partners, we listen to
the network.
• We don’t take data, we take metadata.
• We can learn:
• Network topology
• Amount of devices connected
• Segmentation of devices
• For each device, operating system and basic operational
functions
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• Additionally:
• Must the device update the operating system?
• Are we overusing or underusing some devices?
• Is our infrastructure under-dimensioned or over-dimensioned?
• Should we revise our list of devices?
• Is there any security threat active today?

11. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Network Advisory – threats in the network
• Who is acting in the network that
should not?
• Is there any hacked device?
• Is there any “silent threat”? (DLP)
• Is there any “watering hole”?
• Are there candidates to become
netbots in a DDoS?
• How protected is the backup
procedure?
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12. | 23/11/2023 | Listen to your Metadata | Josema Cavanillas
Network Advisory – The Security Wall
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• We provide Managed Security Services
• 24x7, x 366, worldwide
• 16 SOCs
• Continuous update on existing threats

13. Belgrade, Nov 23rd 2023
Хвала вам !!
Josema Cavanillas