Let's continue with getting started with cybersecurity in this lecture, you will learn to describe
what is cybersecurity, then you will see the standard definition of cybersecurity and finally, some
eye opening facts related to security and attacks.
So what is cybersecurity?
In the last lecture, we saw the definition of security, according to Kaspersky, cybersecurity, it
is the practice of defending computers, servers, mobile devices, electronic systems and networks
from malicious attacks.
With the introduction of the computer, the need for automated tools for protecting files and other
information stored on the computer became evident.
This is especially the case for a shared system such as timesharing system, and the need is even more
acute for systems that can be accessed or public telephone network.
Cybersecurity refers to a set of techniques used to protect the integrity of networks, programs and
data from attacks, damage or unauthorized access.
These are the standard definitions, according to NIST, that is National Institute of Standards and
Technology United States.
They define cyber security as the protection of information systems from unauthorized access use, disclosure,
disruption, modification or destruction in order to provide confidentiality, integrity and availability.
Confidentiality, integrity and availability are the three terms of the information security element.
We will explore these stones in upcoming lectures, according to the government of the United Kingdom.
Cybersecurity is the application of technologies, processes and controls to protect systems, networks,
programs and data from cyber attacks.
If you observe closely to these definitions, you may find out one common thing that is protection of
something from something using computer technology.
And that is nothing but cybersecurity.
Here, here are some things that you shouldn't really understand before actually learning concepts,
68 percent of the business leaders feel their cybersecurity risks are increasing.
Worldwide spending on cybersecurity is forecasted to reach one thirty three point seven billion dollars.
As we have seen in the last lecture about the disk based data breaches, we can see that ninety seven
point nine records were exposed to.
The top malicious attachments are dot, dot, dot, dot, dot, so which means that even if you have
received an e-mail which consist of dot, dot, file, it may be a virus.
So you have to actually have the knowledge before downloading a thing from any random source.
This is more terrifying.
Hackers attack every 39 seconds, which means between our lecture, they must have attacked five times,
which is equivalent to average 2000 times a day.
64 percent of Americans have never checked to see if they're affected by data breach.
I mean, and this is why people need to understand cybersecurity.
In 2018, Under Armour reported that it's my fitness pal was hacked, affecting 150 million users.
Now, not a fitness app is hacked.
They get to know everything about the diseases and again, you know, diseases than if they have any
dietary restrictions, the accounts, the names, passwords, everything.
And this can be devastating.
So in this lecture, we saw what is the definition of cyber security.
We also saw the standard definition of security.
And at the end we saw some interesting facts.
And I hope these facts have opened an eye and it's time to start learning about security in the next
lecture.
We will see then was the first cyber attack carried out in this world.
So let us study the history and applications of cybersecurity.