Network security

Source: Wikipedia, the free encyclopedia.

Network security consists of the

unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources.[1] 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.

Network security concept

Network security starts with

two-factor authentication, something the user 'has' is also used (e.g., a security token or 'dongle', an ATM card, or a mobile phone); and with three-factor authentication, something the user 'is' is also used (e.g., a fingerprint or retinal scan
).

Once authenticated, a

intrusion prevention system (IPS)[4] help detect and inhibit the action of such malware. An anomaly-based intrusion detection system may also monitor the network like wireshark traffic and may be logged for audit purposes and for later high-level analysis. Newer systems combining unsupervised machine learning with full network traffic analysis can detect active network attackers from malicious insiders or targeted external attackers that have compromised a user machine or account.[5]

Communication between two hosts using a network may be encrypted to maintain security and privacy.

honeynet is a network set up with intentional vulnerabilities. Its purpose is also to invite attacks so that the attacker's methods can be studied and that information can be used to increase network security. A honeynet typically contains one or more honeypots.[7]

Previous research on network security was mostly about using tools to secure transactions and information flow, and how well users knew about and used these tools. However, more recently, the discussion has expanded to consider information security in the broader context of the digital economy and society. This indicates that it's not just about individual users and tools; it's also about the larger culture of information security in our digital world.[8]

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
. In order to minimize susceptibility to malicious attacks from external threats to the network, corporations often employ tools which carry out network security verifications].

Types of attack

Networks are subject to

attacks from malicious sources. Attacks can be from two categories: "Passive" when a network intruder intercepts data traveling through the network, and "Active" in which an intruder initiates commands to disrupt the network's normal operation or to conduct reconnaissance and lateral movements to find and gain access to assets available via the network.[9]

Types of attacks include:[10]

See also

References

  1. ^ "What is Network Security? Poda myre". Forcepoint. 2018-08-09. Retrieved 2020-12-05.
  2. ^ A Role-Based Trusted Network Provides Pervasive Security and Compliance - interview with Jayshree Ullal, senior VP of Cisco
  3. doi:10.1016/j.cose.2011.10.003
    .
  4. ^ Dave Dittrich, Network monitoring/Intrusion Detection Systems (IDS) Archived 2006-08-27 at the Wayback Machine, University of Washington.
  5. ^ "Dark Reading: Automating Breach Detection For The Way Security Professionals Think". October 1, 2015.
  6. ^ "What is a honeypot? How it protects against cyber attacks". SearchSecurity. Retrieved 2021-03-04.
  7. ^ "Honeypots, Honeynets". Honeypots.net. 2007-05-26. Retrieved 2011-12-09.
  8. PMID 36883131
    .
  9. ^ Wright, Joe; Jim Harmening (2009) "15" Computer and Information Security Handbook Morgan Kaufmann Publications Elsevier Inc p. 257
  10. ^ "BIG-IP logout page" (PDF). Cnss.gov. 1970-01-01. Archived from the original (PDF) on 2012-02-27. Retrieved 2018-09-24.

Further reading

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