A security analyst is assessing several company firewalls. Which of the following cools would The analyst most likely use to generate custom packets to use during the assessment?
Monitoring outbound traffic is essential for detecting unauthorized data exfiltration from a system. A new vulnerability that allows malware to move data unauthorizedly would typically attempt to send this data out of the network. By monitoring outbound traffic, security tools can detect unusual data transfers, trigger alerts, and help prevent the exfiltration of sensitive information.
Reference =
CompTIA Security+ SY0-701 Course Content: Domain 04 Security Operations.
CompTIA Security+ SY0-601 Study Guide: Chapter on Threat Detection and Response.
An employee emailed a new systems administrator a malicious web link and convinced the administrator to change the email server's password. The employee used this access to remove the mailboxes of key personnel. Which of the following security awareness concepts would help prevent this threat in the future?
A user needs to complete training at https://comptiatraining.com. After manually entering the URL, the user sees that the accessed website is noticeably different from the standard company website. Which of the following is the most likely explanation for the difference?
Typosquatting(also known asURL hijacking) is a type of attack where cybercriminals register domain names similar to legitimate sites but with slight misspellings (e.g., comptiatraning.com instead of comptiatraining.com). Attackers use these fake sites tosteal credentials or distribute malware. Since the user manually entered the URL and reached an unexpected website,this strongly indicates a typosquatting attack.
Which of the following would best allow a company to prevent access to systems from the Internet?
An air-gapped system is physically isolated from unsecured networks (like the public Internet), ensuring that there is no direct or indirect network connection. This is the most effective way to prevent Internet-based access to sensitive systems.
CompTIA Security+ SY0-701 Official Study Guide, Domain 3.2: 'Air-gapped systems are isolated from external networks and prevent Internet access.'
Exam Objectives 3.2: ''Summarize security implications of embedded and specialized systems.''
A company must ensure sensitive data at rest is rendered unreadable. Which of the following will the company most likely use?
Encryption is a method of transforming data in a way that makes it unreadable without a secret key necessary to decrypt the data back into plaintext. Encryption is one of the most common and effective ways to protect data at rest, as it prevents unauthorized access, modification, or theft of the data. Encryption can be applied to different types of data at rest, such as block storage, object storage, databases, archives, and so on. Hashing, tokenization, and segmentation are not methods of rendering data at rest unreadable, but rather of protecting data in other ways. Hashing is a one-way function that generates a fixed-length output, called a hash or digest, from an input, such that the input cannot be recovered from the output. Hashing is used to verify the integrity and authenticity of data, but not to encrypt it. Tokenization is a process that replaces sensitive data with non-sensitive substitutes, called tokens, that have no meaning or value on their own. Tokenization is used to reduce the exposure and compliance scope of sensitive data, but not to encrypt it. Segmentation is a technique that divides a network or a system into smaller, isolated units, called segments, that have different levels of access and security.Segmentation is used to limit the attack surface and contain the impact of a breach, but not to encrypt data at rest.Reference:CompTIA Security+ Study Guide: Exam SY0-701, 9th Edition, pages 77-781; Protecting data at rest - Security Pillar3
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