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The unusually high number of unknown applications by category in the daily report for application usage can be attributed to the following reasons:

Certificate Inspection is not being used to scan application traffic:

Without certificate inspection, encrypted traffic cannot be adequately analyzed, leading to a higher number of unknown applications.

Certificate inspection allows the FortiSASE to decrypt and inspect HTTPS traffic, identifying applications correctly.

Deep Inspection is not being used to scan traffic:

Deep inspection goes beyond basic traffic analysis, performing thorough examination of packet contents to identify applications accurately.

If deep inspection is not enabled, many applications may go unrecognized and categorized as unknown.

References:

FortiOS 7.2 Administration Guide: Details on certificate inspection and deep inspection configurations.

FortiSASE 23.2 Documentation: Explains the importance of deep inspection and certificate inspection in accurate application identification.

The Secure Web Gateway (SWG) policy is used to control traffic between the FortiClient endpoint and FortiSASE for secure internet access. SWG provides comprehensive web security by enforcing policies that manage and monitor user access to the internet.

Secure Web Gateway (SWG) Policy:

SWG policies are designed to protect users from web-based threats and enforce acceptable use policies.

These policies control and monitor user traffic to and from the internet, ensuring that security protocols are followed.

Traffic Control:

The SWG policy intercepts all web traffic, inspects it, and applies security rules before allowing or blocking access.

This policy type is crucial for providing secure internet access to users connecting through FortiSASE.

References:

FortiOS 7.2 Administration Guide: Details on configuring and managing SWG policies.

FortiSASE 23.2 Documentation: Explains the role of SWG in securing internet access for endpoints.

The exhibit indicates that the URLhttps://www.bbc.com/ is being blocked due to containing a banned word ("fight"). To allow access to this specific URL, you need to adjust the URL filter settings on FortiSASE.

URL Filtering:

URL filtering allows administrators to define policies that block or allow access to specific URLs or URL patterns.

In this case, the URL filter is set to block any URL containing the word "fight."

Modifying URL Filter:

Navigate to the Web Filter configuration in FortiSASE.

Locate the URL filter settings.

Add an exception for the URLhttps://www.bbc.com/ to allow access, even if it contains a banned word.

Alternatively, remove or adjust the banned word list to exclude the word "fight" if it's not critical to the security policy.

References:

FortiOS 7.2 Administration Guide: Provides details on configuring and managing URL filters.

FortiSASE 23.2 Documentation: Explains how to set up and modify web filtering policies, including URL filters.

Zero Trust Network Access (ZTNA) is the FortiSASE feature that ensures least-privileged user access to all applications. ZTNA operates on the principle of "never trust, always verify," providing secure access based on the identity of users and devices, regardless of their location.

Zero Trust Network Access (ZTNA):

ZTNA ensures that only authenticated and authorized users and devices can access applications.

It applies the principle of least privilege by granting access only to the resources required by the user, minimizing the potential for unauthorized access.

Implementation:

ZTNA continuously verifies user and device trustworthiness and enforces granular access control policies.

This approach enhances security by reducing the attack surface and limiting lateral movement within the network.

References:

FortiOS 7.2 Administration Guide: Provides detailed information on ZTNA and its role in ensuring least-privileged access.

FortiSASE 23.2 Documentation: Explains the implementation and benefits of ZTNA within the FortiSASE environment.

If the daily summary report generated by FortiSASE contains very little data, one possible explanation is that the "Log allowed traffic" setting is configured to log only "Security Events" for all policies. This configuration limits the amount of data logged, as it only includes security events and excludes normal allowed traffic.

Log Allowed Traffic Setting:

The "Log allowed traffic" setting determines which types of traffic are logged.

When set to "Security Events," only traffic that triggers a security event (such as a threat detection or policy violation) is logged.

Impact on Report Data:

If the log setting excludes regular allowed traffic, the amount of data captured and reported is significantly reduced.

This results in reports with minimal data, as only security-related events are included.

References:

FortiOS 7.2 Administration Guide: Provides details on configuring logging settings for traffic policies.

FortiSASE 23.2 Documentation: Explains the impact of logging configurations on report generation and data visibility.

Onboarding a Secure Web Gateway (SWG) endpoint involves several components to ensure secure and effective integration with FortiSASE. Two key components are the FortiSASE CA certificate and the proxy auto-configuration (PAC) file.

FortiSASE CA Certificate:

The FortiSASE CA certificate is essential for establishing trust between the endpoint and the FortiSASE infrastructure.

It ensures that the endpoint can securely communicate with FortiSASE services and inspect SSL/TLS traffic.

Proxy Auto-Configuration (PAC) File:

The PAC file is used to configure the endpoint to direct web traffic through the FortiSASE proxy.

It provides instructions on how to route traffic, ensuring that all web requests are properly inspected and filtered by FortiSASE.

References:

FortiOS 7.2 Administration Guide: Details on onboarding endpoints and configuring SWG.

FortiSASE 23.2 Documentation: Explains the components required for integrating endpoints with FortiSASE and the process for deploying the CA certificate and PAC file.

Zero Trust Network Access (ZTNA) private access provides the most efficient and secure method for remote users to access a TCP-based application hosted on a private web server. ZTNA ensures that only authenticated and authorized users can access specific applications based on predefined policies, enhancing security and access control.

Zero Trust Network Access (ZTNA):

ZTNA operates on the principle of "never trust, always verify," continuously verifying user identity and device security posture before granting access.

It provides secure and granular access to specific applications, ensuring that remote users can securely access the TCP-based application hosted on the private web server.

Secure and Efficient Access:

ZTNA private access allows remote users to connect directly to the application without needing a full VPN tunnel, reducing latency and improving performance.

It ensures that only authorized users can access the application, providing robust security controls.

References:

FortiOS 7.2 Administration Guide: Provides detailed information on ZTNA and its deployment use cases.

FortiSASE 23.2 Documentation: Explains how ZTNA can be used to provide secure access to private applications for remote users.

Based on the provided exhibits and the configuration details, the reason why users are still able to download the eicar.com-zip file despite having an antivirus profile applied is due to the Web Filter allowing the traffic. Here is the step-by-step detailed explanation:

Web Filtering Logs Analysis:

The logs show that the traffic to the destination port 443 (which is HTTPS) is allowed and the security event triggered is Web Filter.

The log details indicate that the URL belongs to an allowed category in the policy and thus, the traffic is permitted by the Web Filter.

Security Profile Group Configuration:

The Web Filter with Inline-CASB section indicates that the sitewww.eicar.org is being monitored (93 occurrences) and not blocked.

Since the Web Filter is set to allow traffic from this site, the antivirus profile will not block it because the Web Filter decision takes precedence.

Antivirus Profile Configuration:

Although the antivirus profile is configured, the logs do not show any antivirus actions being triggered. This indicates that the web filter is overriding the antivirus action.

Policy Configuration:

The policy named "Web Traffic" shows that it has logging enabled and is set to accept traffic.

The profile group "SIA" applied to this policy includes both Web Filter and Antivirus settings. However, since the Web Filter is allowing the traffic, the antivirus profile does not get the chance to inspect it.

References:

FortiGate Security 7.2 Study Guide: Provides details on the precedence of web filtering over antivirus in security profiles.

Fortinet Knowledge Base: Detailed explanation of web filtering and antivirus profiles interaction.

FortiSASE brings the following advantages to businesses with multiple branch offices:

Centralized Management for Simplified Administration:

FortiSASE provides a centralized management platform that allows administrators to manage security policies, configurations, and monitoring from a single interface.

This simplifies the administration and reduces the complexity of managing multiple branch offices.

Eliminates the Need for On-Premises Firewalls:

FortiSASE enables secure access to the internet and cloud applications without requiring dedicated on-premises firewalls at each branch office.

This reduces hardware costs and simplifies network architecture, as security functions are handled by the cloud-based FortiSASE solution.

References:

FortiOS 7.2 Administration Guide: Provides information on the benefits of centralized management and cloud-based security solutions.

FortiSASE 23.2 Documentation: Explains the advantages of using FortiSASE for businesses with multiple branch offices, including reduced need for on-premises firewalls.