WHAT IS A CYBERATTACK?
 A cyberattack is a malicious and deliberate attempt by an
individual or organization to breach the information system
of another individual or organization.
 Usually, the attacker seeks some type of benefit from
disrupting the victim’s network.
WHY DO PEOPLE LAUNCH CYBER ATTACKS?
 Cybercrime has increased every year as people try to benefit
from weak business systems. Often, attackers are looking for
ransom: 53 percent of cyber attacks resulted in damages of
$500,000 or more.
 Some attackers look to obliterate (destroy) systems and data
as a form of“hacktivism.
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(1) John Chambers
WHAT IS A BOTNET?
 A botnet is a network of devices that has been
infected with malicious software, such as a virus.
 Attackers can control a botnet as a group without
the owner’s knowledge with the goal of increasing
the magnitude of their attacks.
(1) John Chambers
WHAT ARE THE MOST COMMON CYBERATTACKS?
1- Malware
 Malware is a term used to describe malicious software,
including spyware, ransomware, viruses, and worms.
 Malware breaches a network through a vulnerability,
typically when a user clicks a dangerous link or email
attachment that then installs risky software.
(1) John Chambers
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 Once inside the system, malware can do the
following :
• Blocks access to key components of the
network (ransomware)
• Installs malware or additional harmful software
• Covertly obtains information by transmitting
data from the hard drive (spyware)
WHAT ARE THE MOST COMMON CYBERATTACKS?
2- Phishing
 Phishing is the practice of sending fraudulent
communications that appear to come from trusted source,
usually through email or by phone.
 The goal is to steal sensitive data like credit card and login
information or to install malware on the victim’s machine.
WHAT ARE THE MOST COMMON CYBERATTACKS?
3- Man-in-the-middle attack
 Man-in-the-middle (MitM) attacks, also known as
eavesdropping attacks, occur when attackers
insert themselves into a two-party transaction.
Once the attackers interrupt the traffic, they can
filter and steal data.
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Two common points of entry for MitM attacks:
1. On unsecure public Wi-Fi, attackers can insert themselves
between a visitor’s device and the network. Without
knowing, the visitor passes all information through the
attacker.
2. Once malware has breached a device, an attacker can install
software to process all of the victim’s information.
WHAT ARE THE MOST COMMON CYBERATTACKS?
4- Denial-of-service attack
➢ A denial-of-service attack floods systems, servers,
or networks with traffic to exhaust resources and
bandwidth.
➢ Attackers can also use multiple compromised
devices to launch this attack. This is known as
a distributed-denial-of-service (DDoS) attack.
WHAT ARE THE MOST COMMON CYBERATTACKS?
 SQL injection
 A Structured Query Language (SQL) injection occurs when
an attacker that uses
SQL and forces the server to reveal information it
normally would not.
inserts malicious code into a server 
WHAT ARE THE MOST COMMON CYBERATTACKS?
• DNS Tunnelin