In this section of the course,
we're going to talk about security techniques.
In the digital age,
the importance of robust security techniques
cannot be overstated.
As we are increasingly relying on technology
for a plethora of tasks,
the need to protect our systems and data
from potential threats have become paramount.
This section delves into the diverse world
of security techniques,
exploring the various strategies, tools,
and methodologies employed
to protect different digital assets.
From traditional firewalls and antivirus software
to more advanced techniques,
such as biometric authentication, encryption,
and intrusive detection systems,
we will provide a comprehensive overview
of the landscape of security techniques.
We will also discuss the evolving nature
of these techniques
in response to the changing landscape of cyber threats.
Whether you're a seasoned IT professional
or a novice in the field,
this section will equip you with the knowledge that you need
to understand and implement effective security measures.
So in this section of the course,
we'll be focusing solely on Domain 4,
specifically objectives 4.1 and 4.5.
Objective 4.1 states that, given a scenario,
you must be able to apply common security techniques
to computing resources.
Objective 4.5 states that, given a scenario,
you must be able to modify enterprise capabilities
to enhance security.
First, we'll go over wireless infrastructure security.
Wireless networks have become an integral part
of our daily lives.
From personal use in our homes
to large-scale operations and businesses,
these networks facilitate seamless communication
and data exchange.
However, the convenience of wireless connectivity
also brings with it a host of security challenges.
Next, we're going to jump into discussion
of wireless security setting.
We're going to go over WPA3,
AAA, RADIUS, cryptographic protocols,
and authentication protocols.
Then we're going to talk about application security,
including input validation, secure cookies,
static code analysis, dynamic code analysis,
code signing and sandboxing.
After that, we're going to discuss
network access control, or NAC.
NAC is a security solution
that enforces policies on devices and users in the network.
It is designed to protect networks from potential threats
by restricting the availability of network resources
to endpoint devices and users.
Next, we're going to discuss web and DNS filtering.
In this lesson, we'll cover agent-based web filters,
centralized proxies, URL scanning,
content categorization, block rules and reputation.
Then we'll take a look at email security,
and we'll talk about some of the important protocols,
like DMARC, DKIM, SPF, and gateway protocol,
as well as covering some spam filtering techniques.
After that, we'll dive into endpoint detection and response,
or EDR.
EDR is a cybersecurity technology that continuously monitors
and collects data from endpoint devices,
like computers, tablets, or smartphones,
in order to identify, investigate,
and prevent potential cybersecurity threats.
Next, we're going to cover user behavior analytics.
User behavior analytics is a process
that leverages machine learning data analytics
and user behavior patterns
to identify potentially harmful activities
within a system or network.
By establishing a baseline of normal behaviors,
UBA systems can detect anomalies or deviations.
Then we'll cover selecting secure protocols.
This includes protocol selection, course selection,
and transport method selections.
And finally, we'll take a short quiz to see what you learned
during this section of the course,
and review each one of those quiz questions
to fully ensure that you can explain
why the right answers were right.
So let's jump into the coverage
of various security techniques that we can utilize
in this section of the course.