Basics of cyber security

We are living in a digital era where data is everything. We must understand that private information is much more vulnerable than ever before. We often hear about data breaches and cases of identity theft that affect millions of consumers. Two years ago, WannaCry ransomware encrypted millions of computers. All companies and institutions are fighting to protect their data against hackers and cybercriminals, and you can also play a role in it.
Cybersecurity is not involved only in organizations, but even personal computers, mobile phones, and tablets.
Cyber Security is the process and techniques involved in protecting sensitive data, computer systems, networks, and software applications from cyber attacks. The cyber attacks are general terminology that covers a large number of topics, but some of the popular are:
  • Tampering systems and data stored within
  • Exploitation of resources
  • Unauthorized access to the targeted system and accessing sensitive information
  • Disrupting the normal functioning of the business and its processes
  • Using ransomware attacks to encrypt data and extort money from victims
The attacks are now becoming more innovative and sophisticated that can disrupt the security and hacking systems. So it’s very challenging for every business and security analyst to overcome this challenge and fight back with these attacks.
The security of any organization starts with three principles: Confidentiality, Integrity, Availability.
Confidentiality: The principles of confidentiality assert that only authorized parties can access sensitive information and functions. Example: military secrets.
Integrity: The principles of integrity assert that only authorized people and means can alter, add, or remove sensitive information and functions. Example: a user entering incorrect data into the database.
Availability: The principles of availability assert that systems, functions, and data must be available on-demand according to agreed-upon parameters based on levels of service.
To pursue your career in cybersecurity, it is essential to know about the areas of specialization in it, and this cyber security for beginners tutorial will help you do just that. There are nine:
Access control systems and methodology: This deals with protecting critical system resources from unauthorized modification.
Telecommunications and network security: This focuses on communications, protocols, and network services, and the potential vulnerabilities associated with each.
Security management practices: This area deals effectively with catastrophic systems failures, natural disasters, and other types of service interruptions.
Security architecture and models: This focuses mostly on having security policies and procedures in place. This particular security domain involves policy planning for just about every type of security issue.
Law, investigation, and ethics: This handles the legal issues associated with computer security.
Application and system development security: This person covers things like database security models and the implementation of multilevel security for in-house applications.
Cryptography: Designed to help you understand how and when to use encryption.
Computer operations security: This covers all those things that happen while your computers are running.
Physical security: This primarily addresses questions about physical access to your servers and workstations.

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