The reported issues suggest problems related to network connectivity, remote access, and certificate management:
* A. Review VPN throughput: Connectivity issues and the inability to download applications while working remotely may be due to VPN bandwidth or performance issues. Reviewing and optimizing VPN throughput can help resolve these problems by ensuring that remote users have adequate bandwidth for accessing corporate resources.
* F. Validate MDM asset compliance: Mobile Device Management (MDM) systems ensure that mobile endpoints comply with corporate security policies. Validating MDM compliance can help address issues related to the inability to download applications and certificate errors, as non-compliant devices might be blocked from accessing certain resources.
* B. Check IPS rules: While important for security, IPS rules are less likely to directly address the connectivity and certificate issues described.
* C. Restore static content on the CDN: This action is related to content delivery but does not address VPN or certificate-related issues.
* D. Enable secure authentication using NAC: Network Access Control (NAC) enhances security but does not directly address the specific issues described.
* E. Implement advanced WAF rules: Web Application Firewalls protect web applications but do not address VPN throughput or mobile device compliance.
References:
* CompTIA Security+ Study Guide
* NIST SP 800-77, "Guide to IPsec VPNs"
* CIS Controls, "Control 11: Secure Configuration for Network Devices"

Why A is the Correct answer:
A supply chain attack is exactly what the organization is trying to mitigate. By creating a registry of known- good software packages and their hashes, they can verify that the packages they are using are legitimate and haven ' t been altered.
If an attacker were to compromise a software package in the supply chain, the hash of the altered package would not match the hash in the organization ' s registry. This would immediately alert the organization to a potential compromise.
CASP+ Relevance: This aligns with the CASP+ exam objectives, which emphasize the importance of risk management, threat intelligence, and implementing security controls to address various attack vectors, including supply chain risks.
How the Registry Works (Elaboration based on CASP+principles):
Hashing: When a package is vetted, a cryptographic hash function (like SHA-256) is used to generate a unique " fingerprint " (the hash) of the package ' s contents.
Verification: Before installing or using a package, its hash is calculated and compared to the hash stored in the registry. A match confirms the package ' s integrity. A mismatch indicates tampering.
Incident Response: If a vulnerability is discovered in a commonly used package, the registry helps the organization quickly identify which systems are affected based on the dependency list and the stored hashes.
In conclusion, maintaining a registry of software dependencies with hashes is a crucial security control that directly addresses the threat of supply chain attacks by ensuring the integrity and authenticity of software packages. The use of hash functions for verification is a common practice in security and is emphasized in the CASP+ material.

See the answer below in Explanation.
Explanation:
VPN Concentrator:
A screenshot of a computer Description automatically generated

AAA Server:
A screenshot of a computer Description automatically generated

According to SecurityX CAS-005 threat intelligence and testing objectives, a honeypot is a decoy system designed to lure attackers, allowing security teams to observe new tactics, techniques, and procedures (TTPs) in a controlled environment.
An IPS is designed to block known attacks but not discover new ones.
Sandboxing is useful for analyzing suspicious files or malware samples but not for attracting live, unknown attack attempts.
Scanning for IoCs detects known compromise indicators, not new, emerging attacks.A honeypot directly supports proactive attack discovery and analysis.