Palo Alto Networks Cybersecurity-Practitioner Exam Questions

SaaS applications are cloud-based software that users can access from anywhere and any device. This poses a challenge for organizations to ensure that their employees are using the SaaS applications in a secure and compliant manner.Therefore, organizations need to establish and enforce acceptable use policies (AUPs) for SaaS applications that define the rules and guidelines for accessing and using the applications, such as who can use them, what data can be stored or shared, and what actions are prohibited12.AUPs help organizations to protect their data, prevent unauthorized access, and comply with local regulations and standards3.Reference:Using Software as a Service (SaaS) securely - NCSC,Minimum Security Standards for Software-as-a-Service (SaaS) and Platform-as-a-Service (PaaS) | University IT,How to Secure Your SaaS Applications - CyberArk

Data security is the only type of security that the customer is fully responsible for when using a SaaS application. Data security refers to the protection of data from unauthorized access, use, modification, deletion, or disclosure.Data security includes aspects such as encryption, backup, recovery, access control, and compliance12. The customer is responsible for ensuring that their data is secure in transit and at rest, and that they comply with any applicable regulations or policies regarding their data.

The other types of security - physical, platform, and infrastructure - are the responsibility of the SaaS provider. Physical security refers to the protection of the hardware and facilities that host the SaaS application. Platform security refers to the protection of the software and services that run the SaaS application. Infrastructure security refers to the protection of the network and systems that support the SaaS application.The SaaS provider is responsible for ensuring that these layers of security are maintained and updated, and that they meet the required standards and certifications34.Reference:

SaaS and the Shared Security Model

A Guide to SaaS Shared Responsibility Model

The Shared Responsibility Model for Security in The Cloud (IaaS, PaaS & SaaS)

Shared responsibility in the cloud

Ensuring that your cloud resources and SaaS applications are correctly configured and adhere to your organization's security standards from day one is essential to prevent successful attacks. Also, making sure that these applications, and the data they collect and store, are properly protected and compliant is critical to avoid costly fines, a tarnished image, and loss of customer trust. Meeting security standards and maintaining compliant environments at scale, and across SaaS applications, is the new expectation for security teams.

SSL/TLS decryption allows security tools to inspect encrypted traffic, enabling them to detect hidden malware, command-and-control communication, or data exfiltration that would otherwise bypass inspection if left encrypted.

A stateless firewall is a network firewall that primarily filters traffic based on source and destination IP address, as well as port numbers and protocols. A stateless firewall does not keep track of the state or context of network connections, and only inspects packet headers. A stateless firewall is faster and simpler than a stateful firewall, but it is less secure and flexible. A stateless firewall cannot block complex attacks or inspect packet contents for malicious payloads.Reference:What Is a Packet Filtering Firewall? - Palo Alto Networks,Common IP Filtering Techniques -- APNIC,What is IP filtering? - Secure Network Traffic Management