Cyber Security

What is cyber security? and what are the issue and how we can avoid it

Navigating the Digital Defense Landscape

In our increasingly interconnected world, where technology shapes our daily lives, cyber security stands as the digital guardian against threats and attacks. It encompasses a set of practices and tools designed to safeguard data, networks, and computer systems from unauthorized access, damage, and theft. Let’s dive into the key components and threats in the realm of cybersecurity, keeping it concise and blog-friendly.

Key Components:

1. Confidentiality:

Ensuring only authorised entities access sensitive information using secure protocols, encryption, and access controls.

2. Integrity:

Safeguarding data from unauthorised changes through checksums, digital signatures, and hashing techniques.

3. Availability:

Making data and systems accessible when needed, utilising reliable facilities, backup systems, and redundancy.

4. Authentication: 

Verifying user or system identity through passwords, biometrics, or multi-factor authentication.

5. Authorization:

Granting appropriate access rights to authenticated users, managed through role-based access control (RBAC) and access control lists (ACLs).

6. Non-repudiation:

Ensuring indisputable proof of information origin or delivery, often achieved through digital signatures and audit records.

Common Threats in Cyber security:

1. Malware: 

Malicious software aiming to disrupt, damage, or gain unauthorized access into your cyber privacy . Examples include viruses, worms, Trojans, ransomware, spyware, and adware.

Example:  The WannaCry ransomware attack in 2017, exploiting a Windows vulnerability, encrypted files, and demanded a ransom for decryption.

2. Phishing: 

Deceptive attempts to acquire sensitive information through fake communications, often posing as trustworthy entities.

Example: A phishing email posing as a bank, urging recipients to click a link and input login credentials due to a security threat.

3. Denial-of-Service (DoS) Attacks: 

Overwhelming a system with illegitimate requests, disrupting services. Volumetric, protocol, and application layer attacks are common.

Example: Flooding a popular e-commerce site during a flash sale, causing it to slow down or become unavailable.

4. Man-in-the-Middle (MitM) Attacks: 

Intercepting or altering communication between two parties without their knowledge.

Example: Wi-Fi eavesdropping at a café, where an attacker intercepts data exchanged between a user’s device and the Wi-Fi router.

5. Social Engineering: 

Exploiting human psychology to manipulate individuals into divulging sensitive information or performing actions that compromise security.

Example: A phishing attack targeting an employee by impersonating the IT department and creating a sense of urgency.

Preventing Cyber Security Threats:

1. Keep software updated to patch vulnerabilities.

2. Use antivirus and anti-malware solutions.

3. Exercise caution online, avoiding suspicious links and downloads.

4. Backup critical data regularly to facilitate recovery.

5. Implement network security measures like firewalls and intrusion detection systems.

6. Educate users about cyber security risks and best practices.

In this ever-evolving digital landscape, understanding and implementing cyber security measures are vital for individuals and organizations alike. By staying informed, adopting best practices, and fostering a culture of cyber awareness, we can collectively build a robust defense against the diverse and sophisticated threats lurking in the cyber realm.

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