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2. Types of securities
Attack From Internet
Security products
Conclution
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3.  The Internet is a global system of
interconnected computer networks that use the
standard Internet protocol suite to link several billion
devices worldwide.
What’s internet security
Internet security is a branch of computer
security specifically related to the Internet, often
involving browser security
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4. TYPES OF SECURITIES
Network layer security
Internet Protocol Security
Security token
Electronic mail security
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5. NETWORK LAYER
SECURITY
The network layer, commonly referred to as the physical
interface between the host system and the network
hardware.
 It defines how data packets are to be formatted for
transmission and routings
Network layer can be made secure with the help of
cryptographic methods and protocols developed for
securing communications on the Internet.
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6. INTERNET PROTOCOL
SECURITY
Internet Protocol Security is a protocol for
securing Internet Protocol communications
by authenticating and encrypting the data.
IPsec can be used in protecting data flows between a
pair of hosts or between a pair of security gateways or
between a security gateway and a host
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7. SECURITY TOKEN
A security token is a physical device that an authorized
user of computer services is given to
ease authentication.
Security tokens are used to prove one's identity
electronically.
The token acts like an electronic key to access
something.
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8. ELECTRONIC MAIL
SECURITY
The protection of email from unauthorized access and
inspection is known as email security .
This email security is used to prevent an cracker to
acess.
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9. ATTACK FROM INTERNET
Denial-of-service attack
Buffer overflow attacks
Malicious software
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10. DENIAL-OF-SERVICE ATTACK
DoS attack is an attempt to make a machine or
network resource unavailable to its original users.
It generally consists of efforts to temporarily or
indefinitely interrupt or suspend services of a host
connected to the Internet.
Buffer overflow attacks
In computer security and programming, a buffer
overflow, is an Software bug where a program, while
writing data to a buffer, overruns the buffer's boundary
and overwrites adjacent memory.
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11. MAMALICIOUS
SOFTWAREOUS
SOFTWARE
Malicious software is software used to disrupt
computer operation, or gather sensitive information, or
gain access to private computer systems
Main Types of Malicious software
Viruses
Worms
Trojan horse 11

12. VIRUSES
 A computer virus is a type of malicious software that, when
executed, replicates by inserting copies of itself into other program.
Worms
A computer worm is a malware program that replicates itself, across a network
to other computers.
Trojan horse
A Trojan horse in computing is a non-self-replicating type
of malware program containing malicious code that, when executed in a slower
process.
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13. INTERNET
products
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14. Firewalls
Antivirus
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15. FIREWALLS
Firewall is a technological barrier designed to prevent
unauthorizition between computer networks or hosts.
A firewall controls access between networks. It
generally consists of gateways and filters.
Firewalls also screen network traffic and are able to
block traffic that is dangerous.
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16. ANTIVIRUS
Antivirus, is computer software used to prevent, detect
and remove malicious computer viruses.
Antivirus software blocks known malicious web sites
that attempt to install malware
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17. Internet securities main objective is to establish
rules and measures to use against attacks over the
Internet.
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