Computer Network Security
Computer Network security involves securing the computer network infrastructure. It prevents, monitors and howtosetup.co- computer network security protects unauthorized access, modification, misuse, usability and integrity of the user’s network as well as data. Network security commonly authenticates with a username and password and the security is administered by the network administrator. The network administrator implements the network software, security policy and hardware needed for the protection of the network. The network administrator ensures that the users has adequate access to the resource work and the network. The network security is an integrity of multiple layers of defenses. It consists of several components including network monitoring and security software in addition to appliances and hardware. All the components work together in-order to increase the overall security of the computer network.
What Is The Need For Computer Network Security
Computer network security protects the privacy of the users. It avoids theft of confidential data and helps in delivering the data to the end-user. Viruses and spy-wares can sometimes wipe off the data from the computer. It prevents attackers from gaining access to the important files and that there are chances of them manipulating the data; so, to avoid such damages, network security is needed.
Why Computer Network Security Is Important
Network security should have high priority when setting up a network. This is due to the fact that the network is \constantly under the threat of getting hacked. Hacking a network can cause loss of data, data theft and data manipulation. There are many tools and utilities available to help secure the network.
How Is Network Security Different From Computer Security
Network security means limiting the access with the firewall, monitoring the network for unusual activity and securing Wi-Fi and VPN access. Whereas the computer security deals with being careful about the email, and keeping system software updated. To maintain computer security, usage of security software is required to keep the malware out.
Digital Signature In Computer Network Security
Digital signature is a mathematical tool that validates the authenticity of a message, digital document and software. It is equivalent to a handwritten signature or a stamp seal. A digital signature provides added assurance of evidence to the origin. The authentication the digital signature depends on encryption. A digitally signed document is sent as a separate document and the receiver receives both the documents.
WHERE CAN I FIND THE NETWORK SECURITY KEY ON MY COMPUTER
- The network security key is the password for the internet network, it can be found on the router.
- The security key will be marked on the label which can be found on the router.
How Important Is Security In Computer Network
Computer network security is important, because there should not be any unauthorized use of the computer network,. The security is not only protects threats from outside, but also from inside. This allows internal users to misuse the resources. There is also a chance of the computer network getting affected by a virus that could damage it.
What Is Cryptography In Computer Network Security
Cryptography is converting a plain text and making it secure and less prone to attacks. Cryptography protects the data from any modification and data theft. Cryptography is associated with scrambling of plaintext into cipher-text . To decipher the text, a key is required that makes the cryptography more secure.
Why Does My Computer Say Network Security Key Mismatch
This error comes when the security key doesn’t match with what user has typed. The user has to make sure that the security key is typed without an error. Check if the drivers are updated, if not update the network driver adapter. Check if the security key has not been changed.
Why Computer Users Should Be Concerned About Network And Internet Security
Users have to be concerned about the network and internet security because their privacy is at stake. User’s data might leak and this allows others to take advantage of the leaked data. There are chances that the computer might get affected and could damage the data stored in them.
What Are Passive Attacks In Computer Network Security
The passive attack is a network attack, where system is scanned for open ports and vulnerabilities. The purpose of a passive attack is to gain information about the target,. Manipulation of data is not done in such attacks. Passive attacks include active reconnaissance and passive reconnaissance.
What Is Computer Network Security Threat
Every business and government entities have to pay careful attention to the network security threats, or else it can affect their data and privacy. Superior attacks like DOS error and DDOS error are very difficult to get rid of. Unauthorized access is another harmful threat leading to the loss of important information.
What Is Attack In Computer Network Security
Attack is a security threat involving attempts to obtain, implant, alter, destroy a virus without authorization. This happens to any individual or organization. There are many different attacks, some of them include active, passive and clickjacking. The users have to be careful about their security, else their privacy is at risk.
Describe How Physical Security Directly Affects Computer And Network Security
Physical security has three components which are access control, testing and surveillance. These obstacles have to be placed in the way such that there are no hardening accidents or attacks. Surveillance systems include notification system and cameras that monitors the physical location.
What Are The Biggest Threat To The Security Of a Computer Network
- One of the biggest threat is privilege escalation, which is a network intrusion that takes an advantage of the programming errors or design flaws.
- Virus is another threat that can cause damage to the computer network and can also affect the user’s privacy .
- A self replicating malware called worms, can affect the computer security as it will slowly consume the system resource and will halt other tasks.
- Trojan horse is another common threats, they are hidden in some innocent locations such as screensavers, e-mails etc.
- Spyware collects all the type of data, they can be personal information, and user logins. It can also control the user’s computer.
- Spam is another threat that can be potentially malicious and irritating, as they reduce the productivity.
- Adware sends the user pop-ups containing ads, which slows down the process and the internet connection speed.
- Rootkit software enables access to the user’s computer and to some areas where software is not allowed.
- Botnets are used to spread the e-mail spam and can launch Denial-of-Service attacks.
- logic bomb is a programming code inserted intentionally that is designed to execute under circumstances and can cause damage to the computer.
What Are The Main Security Threats To a Computer Network
- Unauthorized intrusion by the attacker is called hacking. Hacking is one of the main threats, where the attacker can access confidential documents.
- Another threat is the introduction of malware into the user’s computer. Malware can cause adverse effects to the user’s computer.
- Pharming is another main threat, it redirects the website’s traffic to a fake site and accesses the users password and username.
- Phishing is done for malicious reasons,. It can be done to obtain sensitive information .
- Ransomware is nearly always monetary, the victim is notified about the exploit and payment is demanded to recover from the attack.
- Spam is unprompted junk mail which is sent in bulk, they easily affect the computer and they are often sent for commercial purpose.
- Spoofing means hiding one’s identity and using another person’s identity for fraudulent activity.
- Spyware runs in the background of the computer. They monitor the activity of the user, this happens without the knowledge of them.
- Trojan horse works unexpectedly, it works even if the computer is idle. It can be found in any file and can easily affect the computer.
- Virus is a malicious software that manipulates the data and can insert its own code.
Five sources of computer network security breach
- Password attack is a computer network security breach, hacker tries to access the user’s computer by using various methods
- Ransomware is a malicious software that attacks the user’s computer network and demands payment from the victim to remove the virus from the computer.
- Denial-of-service takes place when the attacker prevents legitimate users from accessing their computer, network resources or other devices.
- Data breach occurs when there is unauthorized access of confidential data
- Insider threat occurs with-in the organization, the threat can also be from third parties including temporary workers, contractors and customers.
Enumerate The Ways On How To Safegaurd Computer Network Against Security Threats
- To safeguard the computer network against security threats, and prevent installation of unauthorized don’t let non-admin users to log-in as administrators.
- Secure the password, the password should be long enough . Update the patch management for the OS’.
- Track the browsing activity, educate staff about the security risk, and create and implement appropriate procedures.