1. We’re all going to have to change how we think about data
protection.
--- Elizabeth Denham
-By PARAB MISHRA
0133CS191120

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Why are we talking about Cybersecurity ?
In
1999
In
2000
In
2017
In
2019
Computers of a US Department of Defense division are
installed with a ‘backdoor’ on its servers
Yahoo!, Amazon, Buy.com, CNN.com, eBay, E*Trade,
ZDNet websites hit with massive DoS attack
‘WannaCry’ ransomware attack, which encrypts data and
demands ransom in the Bitcoin
Facebook’s (about) 540 million records were published
on Amazon's cloud computing service

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What is going on now-a-days?
Internet is highly, globally connected
Viruses/worms are in abundance on Internet and continuously
scanning for vulnerable hosts
Increasing
dependency on
internet

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Cybersecurity ?
• Cybersecurity is the protection of systems, networks, applications and
programs from cyber attacks.
• These Cyber-attacks tend to access, change or even destroy sensitive
information to the extent of extorting money from users or causally interrupt a
normal business process.
In a very simple manner –
Cybersecurity = security of

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Who Breaches into security ?
• Non-malicious hackers who
attempt to break into a
company’s or organization’s
systems at their request.
• Hackers without any affiliation to a
company that attempts to break into
a company’s network but risks the
law by doing so.
• Malicious hackers who break
into computer systems and
networks without authorization
or permission.
Hacker
• Any
technology
enthusiast
who uses his
technical
knowledge
and expert
skills to
break into
computer
systems.
White Hat
Hacker
Grey Hat
Hacker
Black Hat
Hacker
Hacktivists
Hackers who are
driven by a cause like
social change,
political agendas or
terrorism.
e.g. -
Anonymous

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CyberAttacks
MITM
DoS Attack
Sniffing / Spoofing
Malware
Phishing
Password Attack

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How to ensure your security ?
 PHISHING
 Be careful when going to any website by clicking on the link included in E-mail or SMS.
 Enter Your Sensitive Data (like Login credentials, Bank details, Personal details etc.
) in Secure Websites Only.
 Immediately respond to any unusual activity.
 SNIFFING / SPOOFING
 Always use ‘https’ website URL instead of ‘http’.
 Always see padlock sign in URL bar of browsing while visiting any website.
 Connect to trusted networks (Wi-Fi)
 Encrypt all data traffic that you send on network.

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 MALWARE
 Use good Anti-malware (Antivirus software)
 Do not install application from untrusted publisher.
 Download software from official website.
 Configure a strong firewall.
 Use Ad-blocker while surfing the web.
 Never miss any update of your Operating System
and Antivirus software.
TYPES OF MALWARE
MALicious softWARE

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 PASSWORD ATTACK
 Make alpha-numeric-symbolic password phrase.
 Do not keep same passwords.
 8-character string password can be hacked in less than 2.5 hours.
 It is impossible to crack 25-character string password.
 Man In The Middle & Denial Of Service ATTACK
 This can be prevented by using a strong firewall.
 By using IPS & IDS.
 By increasing your bandwidth size.

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