What is computer security?
Computer security, also known as cybersecurity or information technology security, protects information systems from theft or damage to their hardware, software, and information, as well as the malfunctioning or malfunctioning of those services. That includes controlling physical access to devices, as well as protection from network and data access, code injection, and malpractices by operators, whether intentionally or accidentally, or due to their deception to distract from secure processes. Controlling is incorporate.
What are computer security concerns?
Computer cybersecurity is concerned with four main areas:
1. Privacy: – Only authorized users can access data and information resources.
2. Integrity: – Only authorized customers should be able to modify the data when needed.
3. Availability: – Data must be available to users when required.
4. Authentication: – Do you communicate with someone you think you are communicating with?
What do antivirus/ firewalls do to solve these problems?
Also known as “packet filter.” A program tracking network and connection traffic try to enter and exit a network or computer and determine whether it should be allowed to pass. Depending on the development, it may be limited to single IP / port groups or full content scanning. A firewall can be shown as a screen or a filter that explicitly controls potentially harmful data.
A program will find programs/files/programs / etc. that may put your computer at risk, either by implementing or exploiting a security vulnerability in the program that is about to address it – types of malware. It detects these types of malware. It is past called or about to be installed on your computer. It can implement many precautions (based on security settings in antivirus software) such as sanitary insulation, permanent repair, and more. It will also search for potentially harmful files to download
How important is computer security?
Preventing data theft such as bank account numbers, credit card information, passwords, documents, working letters, etc. are essential in today’s communications because many daily actions depend on the security of data paths.
The unauthorized intrusion can also misuse data on a computer. An intruder program can modify and change the source code. It can also use its photos or email accounts to create objectionable content such as pornography, fake misleading, and offensive social accounts.
Malicious intentions can also be a factor in computer security. Hackers often use your computer to attack another computer, website, or network to create corruption. Hackers can disable someone’s computer system to create data loss. Distributed service denial of service attack (DDOS) can be instead to prevent website access by server downtime.
The factors described above mean that your data must remain secure and confidential. So, it is necessary to protect your computer, and consequently, the need for computer security arises.
What is a firewall?
A firewall is a piece of security-aware device or devices that exist between the Internet and your network with a single-minded mission: preventing them from reaching us. The firewall acts as a security guard in the middle of the Internet and a local area network (LAN). All network traffic to and from the local network must pass through a firewall, preventing unauthorized access to the network.
What are the types of firewalls?
1 / Packet Filter Firewall checks and packs every packet that crosses the firewall according to a set of rules that you set. If the package passes the test, it is allowed to pass. If the package does not pass, it will be dismissed. Packet filters are the least expensive firewall. As a result, firewalls that filter packets are ubiquitous.
2 / Precision packet inspection (SPI) is a step in intelligence from simple packet filtering. The firewall with status packet scanning sees packets in groups, not individually. It tracks packets that have passed through the firewall and can detect patterns that indicate unauthorized access.
3 / Accurate Packet Inspection (DPI) is the actual content of the packet that is examined to block viruses, spam, and other harmful content. The DPI also allows practices, such as data mining, eavesdropping, and content censorship, that make their use a controversial subject.
Finally, although the Internet has dramatically changed and improved our lives, this vast network and related technologies open the door to a growing number of security threats that protect individuals, families, and businesses themselves needed. Attacks can range from inappropriate to completely debilitating. Important data may be lost, and privacy may be lost.