A Chief Information Security Officer (CISO) has requested that a SIEM solution be implemented. The CISO wants to know upfront what the projected TCO would be before looking further into this concern. Two vendor proposals have been received:
Vendor A: product-based solution which can be purchased by the pharmaceutical company.
Capital expenses to cover central log collectors, correlators, storage and management consoles expected to be $150,000. Operational expenses are expected to be a 0.5 full time employee (FTE) to manage the solution, and 1 full time employee to respond to incidents per year.
Vendor B: managed service-based solution which can be the outsourcer for the pharmaceutical company’s needs.
Bundled offering expected to be $100,000 per year.
Operational expenses for the pharmaceutical company to partner with the vendor are expected to be a 0.5 FTE per year.
Internal employee costs are averaged to be $80,000 per year per FTE. Based on calculating TCO of the two vendor proposals over a 5 year period, which of the following options is MOST accurate?
Correct Answer:
A
The costs of making use of an outsources solution will actually be a savings for the company thus the outsourced solution is a cheaper option over a 5 year period because it amounts to 0,5 FTE per year for the company and at present the company expense if $80,000 per year per FTE.
For the company to go alone it will cost $80,000 per annum per FTE = $400,000 over 5 years. With Vendor a $150,000 + $200,000 (½ FTE) = $350,000
With Vendor B = $100,000 it will be more expensive. References:
Gregg, Michael, and Billy Haines, CASP CompTIA Advanced Security Practitioner Study Guide, John Wiley & Sons, Indianapolis, 2012, p. 130
A security engineer is working on a large software development project. As part of the design of the project, various stakeholder requirements were gathered and decomposed to an implementable and testable level. Various security requirements were also documented.
Organize the following security requirements into the correct hierarchy required for an SRTM. Requirement 1: The system shall provide confidentiality for data in transit and data at rest. Requirement 2: The system shall use SSL, SSH, or SCP for all data transport.
Requirement 3: The system shall implement a file-level encryption scheme. Requirement 4: The system shall provide integrity for all data at rest. Requirement 5: The system shall perform CRC checks on all files.
Correct Answer:
B
Confidentiality and integrity are two of the key facets of data security. Confidentiality ensures that sensitive information is not disclosed to unauthorized users; while integrity ensures that data is not altered by unauthorized users. These are Level 1 requirements.
Confidentiality is enforced through encryption of data at rest, encryption of data in transit, and access control. Encryption of data in transit is accomplished by using secure protocols such as PSec, SSL, PPTP, SSH, and SCP, etc.
Integrity can be enforced through hashing, digital signatures and CRC checks on the files. In the SRTM hierarchy, the enforcement methods would fall under the Level requirement. References:
Gregg, Michael, and Billy Haines, CASP CompTIA Advanced Security Practitioner Study Guide, John Wiley & Sons, Indianapolis, 2012, pp. 17-19, 20, 27-29
A breach was caused by an insider threat in which customer PII was compromised. Following the breach, a lead security analyst is asked to determine which vulnerabilities the attacker used to access company resources. Which of the following should the analyst use to remediate the vulnerabilities?
Correct Answer:
D
An organization has recently deployed an EDR solution across its laptops, desktops, and server infrastructure. The organization’s server infrastructure is deployed in an IaaS environment. A database within the non-production environment has been misconfigured with a routable IP and is communicating with a command and control server.
Which of the following procedures should the security responder apply to the situation? (Choose two.)
Correct Answer:
BF
A company is facing penalties for failing to effectively comply with e-discovery requests. Which of the following could reduce the overall risk to the company from this issue?
Correct Answer:
D
Electronic discovery (also called e-discovery) refers to any process in which electronic data is sought, located, secured, and searched with the intent of using it as evidence in a civil or criminal legal case. E-discovery can be carried out offline on a particular computer or it can be done in a network.
An e-discovery policy would define how data is archived and encrypted. If the data is archived in an insecure manor, a user could be able to delete data that the user does not want to be searched. Therefore, we need to find a way of securing the data in a way that only authorized people can access the data.
A public key infrastructure (PKI) supports the distribution and identification of public encryption keys for the encryption of dat
A. The data can only be decrypted by the private key.
In this question, we have an escrowed corporate PKI. Escrow is an independent and licensed third party that holds something (money, sensitive data etc.) and releases it only when predefined conditions have been met. In this case, Escrow is holding the private key of the PKI.
By encrypting the e-discovery data by using the PKI public key, we can ensure that the data can only be decrypted by the private key held in Escrow and this will only happen when the predefined conditions are met.
Incorrect Answers:
A: File encryption should be enabled to enable the archiving of the data.
B: Requiring each user to log passwords used for file encryption is not a good solution. Apart from there being no mechanism to enforce this, you should not need to know users’ passwords. You need a mechanism that ensures that the data can be decrypted by authorized personnel without the need to know user passwords.
C: You cannot and should not be able to archive old passwords. You need a mechanism that ensures that the data can be decrypted by authorized personnel without the need to know user passwords. References:
http://searchHYPERLINK "http://searchfinancialsecurity.techtarget.com/definition/electronicdiscovery" financialsecurity.techtarget.com/definitHYPERLINK "http://searchfinancialsecurity.techtarget.com/definition/electronic-discovery"ion/electronicdiscovery https://en.wikipedia.org/wiki/Escrow
