Network security

Network security consists of the policies and practices adopted to prevent and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, which is controlled by the network administrator. Users choose or are assigned an ID and password or other authenticating information that allows them access to information and programs within their authority. Network security covers a variety of computer networks, both public and private, that are used in everyday jobs; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access. Network security is involved in organizations, enterprises, and other types of institutions. It does as its title explains: It secures the network, as well as protecting and overseeing operations being done. The most common and simple way of protecting a network resource is by assigning it a unique name and a corresponding password.

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Security management

Security management for networks is different for all kinds of situations. A home or small office may only require basic security while large businesses may require high-maintenance and advanced software and hardware to prevent malicious attacks from hacking and spamming.

Types of attacks

Networks are subject to attacks from malicious sources. Attacks can be from two categories: "Passive" when a network intruder intercepts data travelling through the network, and "Active" in which an intruder initiates commands to disrupt the network's normal operation or to conduct reconnaissance and lateral movement to find and gain access to assets available via the network.

Types of attacks include:


  • Network
  • Wiretapping
  • Port scanner
  • Idle scan
  • Encryption
  • Traffic analysis


  • Virus
  • Eavesdropping
  • Data modification
  • Denial-of-service attack
  • DNS spoofing
  • Man in the middle
  • ARP poisoning
  • VLAN hopping
  • Smurf attack
  • Buffer overflow
  • Heap overflow
  • Format string attack
  • SQL injection
  • Phishing
  • Cross-site scripting
  • CSRF
  • Cyber-attack

How we help

CK Custom Security Consultants will come to your place of business or home and analyse your current system and set-up an electric closet (space for network base station) and wire all desktop computers and set-up all cell phones. We will also verify that everything works and explain the system and procedures of any type of attack. our professional technicians will also not leave until you understand your purchased system and sign-off of the job. All paperwork will be given to you, that explains everything the technician went over with you and for your future reference.

Note: Closed Circuit Television Cameras (CCTV) are used to monitor and record images of what takes place in specific locations in real time. The images collected are sent to a monitor and recorded on video tape or as digital information. The cameras can be fixed or set to scan an area or they can be operated by controllers. Monitors can be watched by controllers or left unmonitored. The recorded information can be stored and/or reviewed by those who have access to the recordings at their convenience.