Cyber Security and Forensics
212INT2102
Dr.J.Jeya A C
Professo
, Unit - 1
Cybersecurity is the practice of protecting devices, networks, and systems
cyberattacks, damage, and unauthorized access. It's important because the inte
and computers are a fundamental part of modern life, and cybercriminals can ac
our accounts, data, and devices.
Cybersecurity protects against threats like: ransomware and other malware,
phishing scams, and data theft.
* ome best practices for cybersecurity include:
* Using two-way authentication
* Securing passwords
* Installing regular updates
* Running antivirus software
* Using firewalls
* Avoiding phishing scams
* Employing cryptography, or encryption
* Securing domain name servers, or DNS
, History of Internet
Who Invented the Internet? The Story of Multiple Pioneers
While no single person can claim to have “invented” the Internet, it emerged
through the collaborative efforts of numerous brilliant minds over several dec
Let’s explore the key figures and their contributions that shaped the modern
Internet.
Who is known as the father of the Internet?
Vint Cerf and Bob Kahn
Known as
“The Fathers of the Internet”
Key Contributions:
Invented TCP/IP protocol in 1974
Created the foundation for data transmission
Developed internet architecture
Established basic internet communication standards
, The Complete History of the Internet: A Year-by-Year Evolution
1940s: Early Foundations and the World War II Connection
1945Vannevar Bush, an American engineer, published an article titled “As We May
envisioning a system called the Memex, a theoretical device that could store all of an
individual’s books, records, and communications. This foresight laid the conceptual
groundwork for the idea of hypertext and linked data, critical elements of the future
Internet.
Story Connection: Bush’s work emerged from his leadership in the U.S. Office of
Scientific Research and Development during World War II. His efforts to coordinate
wartime technology inspired ideas about information sharing on a grand scale,
ultimately contributing to the Internet’s ideation.
1950s: The Seed of Ideation
1950 – 1958 Cold War Influence: As tensions mounted between the USA and the
Soviet Union, fears of technological inferiority took hold in the United States. This
environment catalyzed technological innovation, particularly in defense and
communication.
Story of ARPA Creation: In 1957, the Soviet launch of Sputnik led the U.S. to create th
Advanced Research Projects Agency (ARPA), focusing on cutting-edge technology tha
could ensure American superiority.
212INT2102
Dr.J.Jeya A C
Professo
, Unit - 1
Cybersecurity is the practice of protecting devices, networks, and systems
cyberattacks, damage, and unauthorized access. It's important because the inte
and computers are a fundamental part of modern life, and cybercriminals can ac
our accounts, data, and devices.
Cybersecurity protects against threats like: ransomware and other malware,
phishing scams, and data theft.
* ome best practices for cybersecurity include:
* Using two-way authentication
* Securing passwords
* Installing regular updates
* Running antivirus software
* Using firewalls
* Avoiding phishing scams
* Employing cryptography, or encryption
* Securing domain name servers, or DNS
, History of Internet
Who Invented the Internet? The Story of Multiple Pioneers
While no single person can claim to have “invented” the Internet, it emerged
through the collaborative efforts of numerous brilliant minds over several dec
Let’s explore the key figures and their contributions that shaped the modern
Internet.
Who is known as the father of the Internet?
Vint Cerf and Bob Kahn
Known as
“The Fathers of the Internet”
Key Contributions:
Invented TCP/IP protocol in 1974
Created the foundation for data transmission
Developed internet architecture
Established basic internet communication standards
, The Complete History of the Internet: A Year-by-Year Evolution
1940s: Early Foundations and the World War II Connection
1945Vannevar Bush, an American engineer, published an article titled “As We May
envisioning a system called the Memex, a theoretical device that could store all of an
individual’s books, records, and communications. This foresight laid the conceptual
groundwork for the idea of hypertext and linked data, critical elements of the future
Internet.
Story Connection: Bush’s work emerged from his leadership in the U.S. Office of
Scientific Research and Development during World War II. His efforts to coordinate
wartime technology inspired ideas about information sharing on a grand scale,
ultimately contributing to the Internet’s ideation.
1950s: The Seed of Ideation
1950 – 1958 Cold War Influence: As tensions mounted between the USA and the
Soviet Union, fears of technological inferiority took hold in the United States. This
environment catalyzed technological innovation, particularly in defense and
communication.
Story of ARPA Creation: In 1957, the Soviet launch of Sputnik led the U.S. to create th
Advanced Research Projects Agency (ARPA), focusing on cutting-edge technology tha
could ensure American superiority.
