This document discusses cyber security and the present threats. It defines cyber security as protecting networks, computers, programs and data from attacks. Some major security problems are discussed like viruses, hackers, malware, Trojan horses, password cracking, and ransomware. The document provides preventive measures that can be taken against these threats like installing security suites, using strong passwords, and enabling firewalls. It also discusses advantages of cyber security like protecting data theft and disadvantages like systems running slower. In conclusion, complete security is difficult but being aware and taking smart precautions can help.

1. Cyber Security
The Present World Threat
1. Mahir Faysal 2015-2-55-0281. Mahir Faysal 2015-2-55-028
2. Md. Mohiuddin Murad 2015-2-55-0272. Md. Mohiuddin Murad 2015-2-55-027
3.Md. Jahirul Islam3.Md. Jahirul Islam 2015-2-55-0082015-2-55-008
4. Sadia Islam 2015-2-55-0204. Sadia Islam 2015-2-55-020
5. Md. Sagir Ahmed5. Md. Sagir Ahmed 2014-1-55-0382014-1-55-038
Presented ByPresented By

2. CONTENTS
INTRODUCTION ABOUT CYBER SECURITY
DESCRIPTION
TYPES OF ATTACKS
SECURITY/PREVENTIVE MEASURES
ADVANTAGES
DISADVANTAGES
CONCLUSION

3. Cyber Security:
 Cyber security is the body of technologies, processes and
practices designed to protect networks, computers, programs and
data from attack, damage or unauthorized access.
 With an increasing amount of people getting connected to
Internet, the security threats that cause massive harm are
increasing also.

4.  It is a combining form relating to information
technology, the Internet, and virtual reality.
Meaning of the Word CYBER

5. Need of cyber security
Cyber security is necessary since it helps in
securing data from threats such as data theft or
misuse, also safeguards your system from viruses.

6. Major security problems
 Virus
 Hacker
 Malware
 Trojan horses
 Password cracking
 Ransomware

7. Viruses and Worms
 A Virus is a “program that is loaded onto your
computer without your knowledge and runs
against your wishes

8. Solution
 Install a security suite that protects the computer
against threats such as viruses and worms.

10. Hackers
In common a hacker is a person who breaks
into computers, usually by gaining access to
administrative controls.

11. Types of Hackers
White Hat Hacker
Grey Hat Hacker
Black Hat Hacker

12. How To prevent hacking
It may be impossible to prevent computer hacking,
however effective security controls including strong
passwords, and the use of firewalls can helps.

13. Malware
The word "malware" comes from the term
"MALicious softWARE."
Malware is any software that infects and damages a
computer system without the owner's knowledge or
permission.

14. To Stop Malware
 Download an anti-malware
program that also
helps prevent infections.
 Activate Network Threat
Protection,
Firewall, Antivirus.

15. Trojan Horses
Trojan horses are
email viruses that can
duplicate themselves,
steal information, or
harm the computer
system.
These viruses are the
most serious threats to
computers

16. How to Avoid Trojans
Security suites,
such as Avast
Internet Security,
will prevent you
from downloading
Trojan Horses.

17. Password Cracking
Password attacks are attacks by hackers that are able
to determine passwords or find passwords to different
protected electronic areas and social network sites.

18. How to Avoid Password Cracking
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EncryptionEncryption
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DecryptionDecryption
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19. Ransomware & Present Cyber
Security Situation in Bangladesh
Ransomware :
Malware that locks out computer and demands a ransom (payment) in exchange for
access.

20. Recent Attact

21. Bangladesh e-Government Computer Incident Response Team

22. Cyber Security Is Everyone’sCyber Security Is Everyone’s
ResponsibilityResponsibility

23. Cyber Security Strategy – Bangladesh
• Security Policy, Legal Framework
– ICT Act, 2006.
– Digital Security Act 2016(Amendment) Bill, 2016 – Data Protection &
Computer crimes
• Capacity building
– Skill & Competence development
• Research and Development
– Cyber Monitoring
– Network Security
• International Collaboration

25. ADVANTAGES OF CYBER SECURITY
PROTECTS THE COMPUTERS AGAINST
VIRUS,WORMS AND MALWARE.
PROTECTS AGAINST THE DATA FROM THEFT
INCREASE IN CYBER DEFENSE
INCREASES THE SECURITY
WE CAN BROWSE THE SAFE WEBSITE
INCREASE IN CYBER SPEED
PROTECTS NETWORKS AND RESOURCES

26. DIS ADVANTAGES OF CYBER CRIMES
MAKES THE SYSTEM SLOWER THAN BEFORE.
FIREWALLS WOULD BE DIFFICULT TO CONFIGURE
CORRECTLY.
HUGE AMOUNT OF LOSS IN MONEY FOR THE
BANKS,COMPANIES ETC
HUGE AMOUNT OF DATA LOSS OCCURS IN THE
DATABASE

27. Conclusion
The only system which is truly secure is one
which is switched off and unplugged.
So , only way to be safe is Pay attention and
Act smart.