350-701 Exam Dumps : Implementing and Operating Cisco Security Core Technologies (SCOR 350-701)

 Phishing is a type of cyberattack that uses fraudulent emails or other communications to trick users into providing sensitive information or installing malware on their devices1. Phishing can lead to identity theft, data breaches, ransomware infections, and financial losses. To protect employees from phishing attacks, a company can use various solutions that can detect, block, and remediate phishing threats. Two of these solutions are:

Cisco Umbrella: Cisco Umbrella is a cloud-based security platform that provides the first line of defense against threats on the internet, including phishing2. Cisco Umbrella uses DNS-layer security, which can identify and block malicious domains, IPs, and URLs before they can reach the user’s device2. Cisco Umbrella also integrates with Cisco Email Security to provide additional protection against phishing emails that may bypass the email gateway3.

Cisco Email Security Appliance (ESA): Cisco ESA is an email gateway that protects inbound and outbound email traffic from spam, malware, phishing, and other threats4. Cisco ESA uses multiple layers of defense, such as reputation filtering, antivirus scanning, outbreak filters, and content filtering, to prevent malicious emails from reaching the user’s inbox4. Cisco ESA also leverages Cisco Advanced Phishing Protection, which uses machine learning and threat intelligence to identify and block sophisticated phishing attacks that use identity deception techniques5.

References := 1: What Is Phishing? Examples and Phishing Quiz - Cisco 2: Cisco Umbrella - Cloud Delivered Enterprise Security 3: Cisco Umbrella and Cisco Email Security Integration 4: Cisco Secure Email - Cisco 5: Cisco Advanced Phishing Protection - Cisco Video Portal

DNS tunneling is a technique that uses the DNS protocol to exfiltrate data or establish command and control channels between a compromised host and an attacker-controlled server. DNS tunneling can bypass network security controls that allow outbound DNS traffic without inspection or filtering. To stop DNS tunneling, two recommended approaches are:

Enforce security over port 53. This means applying firewall rules, access control lists, or other mechanisms to restrict outbound DNS traffic to only authorized DNS servers and domains. Additionally, DNS traffic should be inspected and analyzed for anomalies, such as unusually large or frequent queries, non-standard encoding, or suspicious domains. This can help detect and block DNS tunneling attempts.

Use Cisco Umbrella. Cisco Umbrella is a cloud-based security service that provides DNS security, web filtering, and threat intelligence. Cisco Umbrella can prevent DNS tunneling by blocking malicious domains, enforcing policies based on content categories, and applying machine learning to identify and stop emerging threats. Cisco Umbrella can also provide visibility and reporting on DNS activity and security events.

References :=

Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 5: Securing the Cloud, Lesson 5.2: DNS Security

What Is DNS Tunneling? - Palo Alto Networks

An Introduction to DNS Tunneling Detection & Data Exfiltration via DNS - Vercara

MDM stands for Mobile Device Management, which is a system that performs compliance checks and remote wiping on mobile devices. MDM allows administrators to enforce security policies, monitor device status, and remotely manage devices in case of loss, theft, or compromise. MDM can also integrate with other Cisco security solutions, such as ISE, AMP, and Umbrella, to provide enhanced protection and visibility for mobile devices. References:

Mobile Device Management (MDM) - Cisco

Implementing and Operating Cisco Security Core Technologies (SCOR) - Module 5: Secure Network Access