What is cyber security ?

 Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. These cyberattacks are typically aimed at accessing, changing, or destroying sensitive information, extorting money from users, or interrupting normal business processes. Key aspects of cybersecurity include:

1. **Network Security:**

   - Protecting a computer network from intruders, whether targeted attackers or opportunistic malware.

2. **Application Security:**

   - Keeping software and devices free of threats. A compromised application could provide access to the data it's designed to protect.

3. **Information Security:**

   - Protecting the integrity and privacy of data, both in storage and in transit.

4. **Operational Security:**

   - Includes the processes and decisions for handling and protecting data assets. Permissions users have when accessing a network and the procedures that determine how and where data may be stored or shared fall under this umbrella.

5. **Disaster Recovery and Business Continuity:**

   - Defines how an organization responds to a cybersecurity incident or any other event that causes the loss of operations or data. Disaster recovery policies dictate how the organization restores its operations and information to return to the same operating capacity as before the event.

6. **End-User Education:**

   - Addresses the most unpredictable cybersecurity factor: people. Anyone can accidentally introduce a virus to an otherwise secure system by failing to follow good security practices.

7. **Identity and Access Management:**

   - Ensures that only authorized individuals have access to systems and data.

8. **Cloud Security:**

   - Protects data, applications, and services involved in cloud computing.

9. **Mobile Security:**

   - Protects organizational and personal data stored on mobile devices such as smartphones, tablets, and laptops.

10. **Incident Response:**

    - The approach taken to manage the aftermath of a security breach or cyberattack.

Effective cybersecurity measures can provide a good defense against cyber threats, which are constantly evolving and becoming more sophisticated. This requires continuous efforts in updating security protocols, educating users, and employing advanced technologies to mitigate potential risks.