cybersecurity presentation and a general idea about it

these a general presentation about cybersecurity

1. CYBER SECURITY PRESENTED BY: REDDA & ABDELHADI

2. INTRODUCTION TO CYBER SECURITY Linguistic definition: From a linguistic perspective, cybersecurity is a compound noun formed from: Cyber-: It comes from the word cybernetics (Greek kybernētēs = “steersman, governor, pilot”), coined in 1948 by Norbert Wiener to describe control and communication in machines and living beings. Security: Security: from Latin securitas (safety, freedom from danger).

3. Technical definition: Cybersecurity is the combination of methods, processes, tools, and behaviors that protect computer systems, networks, and data from cyberattacks and unauthorized access

4. WHY CYBER SECURITY MATTERS Cybersecurity aims to prevent both human and commercial losses. By 2025, cybercrime is expected to cause $1.2–$1.5 trillion in global damages. One major case is the North Korean Lazarus Group, which stole $1.5 billion from Bybit, the largest crypto heist of the year. But cyberattacks don’t just hurt finances—they can also cost lives. Between 2016 and 2021, ransomware is estimated to have caused 42–67 patient deaths, showing that cybersecurity protects not only money but also people.

5. The Threats We Face Malware: – malicious software like viruses, worms, and trojans that damage or steal data. Ransomware: – locks or encrypts files and demands payment to unlock them. Phishing Attacks: – fake emails, texts, or websites tricking people into giving passwords or credit card info. DoS/DDoS Attacks: – flooding a system or website to make it crash. Data Breaches: – unauthorized access to sensitive data (like customer info or medical records) Insider Threats: – employees or partners misusing access to harm the organization

6. How Cybersecurity Protects Us Cybersecurity protects us by blocking attacks and keeping data safe. Firewalls, antivirus, and encryption stop hackers from stealing information, while strong passwords and multi-factor authentication secure accounts. Regular updates fix weaknesses, and backups help recover data after an attack. These measures reduce financial risks, protect privacy, and keep vital systems like hospitals and power grids safe

7. Types of Cybersecurity Network Security: – Protects networks and systems from intruders using firewalls, intrusion detection, and secure connections Information Security: – Keeps data safe from unauthorized access or theft, both online and offline Application Security: – Secures apps and software by fixing bugs and blocking threats during use Cloud Security: – Protects data and services stored online in the cloud. Critical Infrastructure Security: – Protects essential systems such as hospitals, energy grids, and transport.

8. Cybersecurity relies on safe habits as well as technology. Strong passwords and two-factor authentication protect accounts, while updates close security gaps. Being alert to phishing attempts reduces human error, and regular backups ensure data can be recovered after an attack. Best Practices in Cybersecurity Strong Passwords & 2FA: – Use unique, hard-to-guess passwords and add two-factor authentication for extra protection. Keep Software Updated: – Updates fix security flaws, so always update your system, apps, and antivirus. Watch Out for Phishing – Avoid suspicious emails, texts, or links that may steal information or install malware Regular Data Backups: – Store copies of important files safely so they can be recovered after an attack.

9. Examples of Careers in Cybersecurity Penetration Tester (Ethical Hacker) Security Engineer Incident Responder Cryptographer Forensic Expert

10. conclusion Cybersecurity is no longer optional—it is essential for protecting both people and businesses. With cybercrime projected to cause trillions in losses and even threaten human lives, strong defenses are more important than ever. By understanding the threats we face, applying best practices, and building skilled careers in this field, we can reduce risks and create a safer digital world for everyone

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