CAS-005 · Question #33
A healthcare system recently suffered from a ransomware incident. As a result, the board of directors decided to hire a security consultant to improve existing network security. The security…
The correct answer is B. PAM D. MFA E. Network segmentation. The healthcare network suffered from a ransomware incident due to a flat network, lack of privileged access limits, and insecure RDP access to sensitive data. The best remediation involves implementing network segmentation, privileged access management, and multi-factor…
Question
A healthcare system recently suffered from a ransomware incident. As a result, the board of directors decided to hire a security consultant to improve existing network security. The security consultant found that the healthcare network was completely flat, had no privileged access limits, and had open RDP access to servers with personal health information. As the consultant builds the remediation plan, which of the following solutions would best solve these challenges? (Select three).
Options
- ASD-WAN
- BPAM
- CRemote access VPN
- DMFA
- ENetwork segmentation
- FBGP
- GNAC
How the community answered
(23 responses)- A4% (1)
- B57% (13)
- C4% (1)
- F26% (6)
- G9% (2)
Why each option
The healthcare network suffered from a ransomware incident due to a flat network, lack of privileged access limits, and insecure RDP access to sensitive data. The best remediation involves implementing network segmentation, privileged access management, and multi-factor authentication.
SD-WAN focuses on optimizing WAN traffic and connectivity, not directly on internal network security, privileged access, or RDP security.
Privileged Access Management (PAM) directly addresses the 'no privileged access limits' by controlling, monitoring, and auditing accounts with elevated permissions, preventing misuse of administrative access.
A remote access VPN secures external connections to the network, but it does not inherently solve internal flat network issues, privileged access problems, or RDP security for internal users.
Multi-factor authentication (MFA) enhances security for RDP access and privileged accounts by requiring multiple verification methods, significantly reducing the risk of unauthorized access even if credentials are compromised.
Network segmentation tackles the 'completely flat network' issue by dividing the network into smaller, isolated segments, limiting the lateral movement of attackers and containing breaches.
BGP (Border Gateway Protocol) is a routing protocol used to exchange routing information between autonomous systems on the internet, which is unrelated to internal network segmentation or access control.
Network Access Control (NAC) enforces policies on devices connecting to the network, but PAM, MFA, and network segmentation are more direct solutions to the specific challenges of privileged access limits, RDP security, and a flat network.
Concept tested: Network security best practices, access control, network design
Source: learn.microsoft.com/en-us/azure/architecture/framework/security/network-segmentation
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