.png)
CYBER SECURITY
ELearning
College Assignment 1 (Solution)
1. What is cyber security?
Answer:
First of all, the term
cyber security refers to all the safeguards and measures to reduce the digital
security breach. Cyber security affects all the computers and mobile phone or
any other devices concerned with internet across the world may be targeted by
cyber criminals. Cyber security means to protect from intruder, hackers, and
illegal crimes. It mainly focus on security of confidential data and
information around the world. Security breach is not a new thing for us because
we man have heard or seen such activities in this digital era. Cyber security
helps us to protect from such breaching, hacking, malwares and many more. Today
world the most demanding technology is cyber security.
2. What are the main objective of cyber security?
Answer:
The main objectives of
cyber security are as follows:
Confidentiality:
It means that only the sender and receiver can see the message or information
or access it. It gives fully privacy with two person only.
But when third person
access this message then it is no more remains confidential.
Authentication:
It means authenticating user’s identity. It take user’s real identity which
concern that same person is sending message.
Integrity;
It means there is not any change in message or modification in message. Any
change in message leads to dishonesty in message like alter, delete, insert,
etc then its integrity is lost.
Non-repudiation: It is a situation like when a user send a
message but later says that I have not send this message. So non-repudiation
does not allow the sender to refuse after sending the message.
Access control:
It ensures which user can access and which cannot access.
Availability:
It says that the resources that is available will be available to the
authorized user only but not the rest.
3. What is rogue software ?
Answer:
Rogue software refers to
the fake antivirus that pretends you’re infected with virus. It may asks you
about money or to but things or to enter your debit card number. All this is a
fake security alert or scam to access your confidential data or files. It is a
form of malicious software and internet fraud that misleads user into believing
there is a virus on their computer and aims to convince them to pay fake
malware remove tools that actually install as many as malware on your computer.
For example:
Torjan horse which leads you to believe that your computer has virus so either
follow fake or install anti–virus to protect computer.
4. What are the internal and external attacks of cyber security? And what are the preventive measure to protect cyber crime ?
Answer:
The difference between
internal and external attacks are:
Cyber criminals may be
the organization or entity or may be stranger. We cannot predict without proof.
But there are two distinct categories of cyber-attacks carried out by criminal’s
entities worldwide.
Internal Attack:
an internal attack occurs when an individual engages in some kind of malicious
activities, by ways of their authorized access to the system. In the majority
of internal attacks which are carried out by disgruntled employees,
dissatisfied contractors, former employees who still have access to the
organization’s system and so on. Internal attacker may have high level of
access privileges, however easy to track back to their origins. Such attacks
damage less comparison to external attack.
Examples:
Data thief is on risk, passwords no longer cut it, the threat within, companies
lack security skill etc.
External Attack:
an external attacks occur when anyone who does not have authorized access to
the company’s systems launches an attack. Any business that operates computers
and IT systems that are connected to the internet is technically a viable
target for external attackers worldwide. Most attacks by firewalls and
safeguards. They uses malware, phishing, DOS attacks, ransomware to access from
externally to gain access to control your system or software.
Examples:
DDoS, web app s are under attack, ransomware, phishing etc.
These are the preventive
measure you can take to protect from cybercrime:
i) Keep tracking employee
access levels and change then accordingly and frequently.
ii) Change passwords and
other information when after an employee leaves.
iii) While training don’t
share confidential data or information or passwords and ensure that passwords
meet at least medium level of requirements.
Sgrzrgbuhf
ReplyDelete