The correct answer is A. Implement regular account reviews.

This scenario describes privilege creep, which occurs when users accumulate permissions over time as they change roles, departments, or responsibilities. Regular account reviews help ensure users have only the access required for their current job duties.

This supports the principle of least privilege, which is a key CompTIA Security+ SY0-701 identity and access management concept.

Why the other options are incorrect:

B. Provide privileged user account training

Training is useful, but it does not remove unnecessary privileges.

C. Require a jump box for privileged account use

A jump box can control administrative access to sensitive systems, but it does not solve the issue of users retaining excessive privileges.

D. Apply more restrictive security baselines

Security baselines harden systems and configurations, but they do not directly review or remove unnecessary user permissions.

Therefore, the best answer is regular account reviews.

General curiosity is the most likely motivation in this scenario. A company administrator may have legitimate technical access to databases, but viewing an employee’s personal information without a business need is an insider misuse issue. In Security+ terms, insider threats are not always financially motivated or malicious in the traditional sense; they can also involve inappropriate access driven by curiosity, snooping, or poor judgment. Ideological differences usually relate to activism, sabotage, or politically motivated behavior. Gaining influence would imply using the personal information for leverage or coercion, which is not stated. Intellectual property refers to proprietary business assets such as designs, code, or trade secrets, not employee personal data. The scenario best fits unauthorized access caused by curiosity.

================

IPSec is a protocol suite that provides secure communication over IP networks. IPSec can be used to create virtual private networks (VPNs) that encrypt and authenticate the data exchanged between two or more parties. IPSec can also provide data integrity, confidentiality, replay protection, and access control. A security consultant can use IPSec to gain secure, remote access to a client environment by establishing a VPN tunnel with the client’s network. References: CompTIA Security+ Study Guide: Exam SY0-701, 9th Edition, Chapter 8: Secure Protocols and Services, page 385 1

Impersonation occurs when an attacker or unauthorized user is granted access (authorized) by masquerading as a legitimate user, effectively bypassing or exploiting the authentication process. This means authorization is mistakenly granted before proper authentication.

Privilege escalation (A) involves gaining higher access after authentication. Race conditions (B) are timing vulnerabilities. Tailgating (C) refers to physical unauthorized access by following an authorized person.

Impersonation is a well-known identity attack vector detailed in the Threats and Vulnerabilities domain of SY0-701【6:Chapter 4†CompTIA Security+ Study Guide】.

This describes a watering hole attack, where an attacker compromises a website frequently visited by the target group and delivers malicious payloads, such as automatic downloads.

XSS (A) injects scripts into web pages, typosquatting (C) involves fake websites with misspelled URLs, and buffer overflow (D) exploits memory but does not involve website compromise with automatic downloads.

Watering hole attacks are well-known web-based threats covered in SY0-701【6:Chapter 2†CompTIA Security+ Study Guide】.

Firmware is a type of software that is embedded in a hardware device, such as a router, a printer, or a BIOS chip. Firmware controls the basic functions and operations of the device, and it can be updated or modified by the manufacturer or the user. Firmware version is a hardware-specific vulnerability, as it can expose the device to security risks if it is outdated, corrupted, or tampered with. An attacker can exploit firmware vulnerabilities to gain unauthorized access, modify device settings, install malware, or cause damage to the device or the network. Therefore, it is important to keep firmware updated and verify its integrity and authenticity. References = CompTIA Security+ Study Guide with over 500 Practice Test Questions: Exam SY0-701, 9th Edition, Chapter 2, page 67. CompTIA Security+ SY0-701 Exam Objectives, Domain 2.1, page 10.

The attacker used a denial-of-service attack and a vishing attack. The flood of thousands of VoIP requests causes legitimate calls to drop or fail, which is an availability attack and clearly maps to denial of service. The second behavior involves tricking users over voice communications into sharing sensitive information, which is vishing. Vishing is voice-based phishing and commonly abuses trust, urgency, caller ID manipulation, or internal-looking extensions. SIP spoofing may appear related because fake internal extensions are mentioned, but the question asks for two attack types that describe the overall incident: service disruption and voice-based social engineering. On-path attacks involve interception, packet sniffing captures traffic, and supply chain attacks compromise vendors or dependencies.

A legacy server is a server that is running outdated or unsupported software or hardware, which may pose security risks and compatibility issues. A critical business application is an application that is essential for the operation and continuity of the business, such as accounting, payroll, or inventory management. A legacy server running a critical business application may be difficult to replace or upgrade, but it should not be left unsecured or exposed to potential threats.

One of the best ways to handle a legacy server running a critical business application is to harden it. Hardening is the process of applying security measures and configurations to a system to reduce its attack surface and vulnerability. Hardening a legacy server may involve steps such as:

Applying patches and updates to the operating system and the application, if available

Removing or disabling unnecessary services, features, or accounts

Configuring firewall rules and network access control lists to restrict inbound and outbound traffic

Enabling encryption and authentication for data transmission and storage

Implementing logging and monitoring tools to detect and respond to anomalous or malicious activity

Performing regular backups and testing of the system and the application

Hardening a legacy server can help protect the critical business application from unauthorized access, modification, or disruption, while maintaining its functionality and availability. However, hardening a legacy server is not a permanent solution, and it may not be sufficient to address all the security issues and challenges posed by the outdated or unsupported system. Therefore, it is advisable to plan for the eventual decommissioning or migration of the legacy server to a more secure and modern platform, as soon as possible.

An unknown environment in penetration testing, also known as a black-box test, simulates an actual external attack where the tester has no prior knowledge of the system. This type of penetration test is designed to mimic real-world attack scenarios, where an attacker has little to no information about the target environment. The tester must rely on various reconnaissance and attack techniques to uncover vulnerabilities, much like a real-world attacker would. This approach helps organizations understand their security posture from an external perspective, providing insights into how their defenses would hold up against a true outsider threat.

References =

CompTIA Security+ SY0-701 Course Content: The course highlights the importance of understanding different penetration testing environments, including black-box testing, which aligns with the " unknown environment " in the provided answer.

CompTIA Security+ SY0-601 Study Guide: The guide details penetration testing methodologies, including black-box testing, which is crucial for simulating real external attacks​​​.

Whaling is a type of phishing attack that targets high-profile individuals, such as executives, celebrities, or politicians. The attacker impersonates someone with authority or influence and tries to trick the victim into performing an action, such as transferring money, revealing sensitive information, or clicking on a malicious link. Whaling is also called CEO fraud or business email compromise2.

Placing a false (decoy) text file in a sensitive location (such as /docs/salaries) is an example of a honeytoken or deception technique. This technique is used to attract insider attackers and monitor their actions when they attempt to access the file.

Encrypting hard drives is a direct implementation of confidentiality, one of the three pillars of the CIA Triad emphasized in CompTIA Security+ SY0-701. Full disk encryption ensures that if a laptop, workstation, or server drive is stolen or accessed without authorization, the data remains unreadable without the decryption key.

This controls unauthorized disclosure and protects sensitive business, financial, and personal information. Drive encryption is widely required for compliance frameworks such as HIPAA, PCI-DSS, and GDPR.

Integrity (A) refers to preventing unauthorized modification of data, which encryption alone does not guarantee. Authentication (B) confirms user identity, such as passwords or biometrics, but is unrelated to data-at-rest protection. Zero Trust (C) is an architectural model requiring constant verification; it is not a control for hard drive encryption.

Since the sole purpose of encrypting storage is to ensure data confidentiality, the correct answer is D.

An SLA (Service-Level Agreement) defines the expected performance, availability, uptime, response times, and responsibilities between a provider and a client. The requirement in the scenario—“97% uptime”—is a classic example of an SLA metric. Security+ SY0-701 emphasizes that SLAs outline measurable service expectations so the client can assess compliance and performance.

A BPA (A) outlines business partnership terms, not performance uptime. An MOU (B) documents mutual understanding but is not legally binding and does not include uptime metrics. An NDA (C) protects confidentiality, not availability or service guarantees.

Thus, the correct answer is D: SLA.

Sanitization is the process of thoroughly removing or wiping all data from devices before disposal or donation to prevent sensitive information from being recovered or leaked.

End user training is the correct answer because the manager identified the suspicious link by applying safe email-handling behavior. Security awareness training teaches users to hover over links, inspect destination URLs, recognize mismatched domains, avoid clicking unknown refund links, and report suspected phishing. This is a human detection control that reduces successful social engineering attacks. URL scanning is a technical control that automatically analyzes links for malicious destinations; the question describes the manager personally recognizing the suspicious URL, not a tool scanning it. Policy review does not directly help a user identify a malicious email in real time. Plain text email can reduce clickable links, but it does not explain the manager’s ability to identify the suspicious domain.

================