The use of the mechanical arts (e.g. barriers) and applied sciences (e.g. electrical/electronic engineering, etc) to provide or enhance the security of people, property and information
source: https://www.collinsdictionary.com/submission/5875/security+technology
Biometric authentication is a “what you are” factor and is based on unique individual characteristics. Two types of biometric properties are useful for authentication. Physical biometrics include DNA, fingerprints, facial recognition, and eye scans (iris, retina). Behavioral biometrics include voice recognition and handwritten signatures.
Improved customer experience
Cannot be forgotten or lost
Reduced operational costs
Environment and usage can affect measurements
Systems are not 100% accurate.
Require integration and/or additional hardware
Cannot be reset once compromised
source: https://www.sestek.com/2016/11/advantages-disadvantages-biometric-authentication/
Encryption is the method or process of encoding data, encrypted data is usually paired with an encryption key. When a data is encrypted, the data is essentially scrambled, making it unreadable. Undoing the encryption would turn the data back to its readable state.
source: https://www.csoonline.com/article/2130877/data-breach/the-biggest-data-breaches-of-the-21st-century.html
More secure than passwords: A malicious user must obtain both the private key and the corresponding passphrase to pose as a legitimate user.
Provides stronger identity checking through secret private keys.
Non-interactive login is possible.
If the private keys cannot be protected, security is no better than with password authentication.
Not very scalable: Distribution of public keys can be cumbersome in large environments. However, SSH Tectia Manager enables automatic distribution of server host keys.-
source: https://www.ssh.com/manuals/server-zos-product/55/ch06s02s02.html
A firewall denotes the set of related programs which are situated between a private network and external networks. It is normally located at the network’s gateway server and helps protect the resources of a private network. The term can also denote security policy. It can take on different forms while doing its job of blocking unauthorized and unwanted traffic from entry into a protected system. A firewall can be a specialized software program or a specialized hardware or physical device. It could also be a combination of both. Examples of these are Zone Alarm which is a software only firewall and Linksys, hardware firewall.
Helping to enforce security and safety policies of an organization.
Restricting access to specified services. Access can even be granted selectively based on authentication functionality.
Their singularity of purpose which means that companies need not make any compromises between usability and security.
Its appraisal capacity which results in an organization getting to know and monitor all the traffic that sifts through their networks.
Being a notification system which can alert people concerned about specific events.
An inability to fend off attacks from within the system that it is meant to protect. This could take the form of people granting unauthorized access to other users within the network or social engineering assaults or even an authorized user intent on malafide use of the network.
It can only stop the intrusions from the traffic that actually passes through them.
It cannot circumvent poorly structured security policies or bad administrative practices. For instance, if a company has a very loosely knit policy on security and over-permissive rules, then a firewall cannot protect data or the network.
As long as a communication or transaction has been permitted, a firewall has no ability to protect the system against it. For instance, if a firewall has been built to allow emails to come through, it cannot detect a virus or a Trojan within that email.
source: https://www.certificationkits.com/cisco-certification/ccna-security-certification-topics/ccna-security-implement-firewalls-with-sdm/ccna-security-operational-strength-a-weaknesses-of-firewalls/
Access control systems are a common part of everyone's daily life. Anything that requires a password or has a restriction placed on it based on its user is using an access control system. For example, when a person views his bank account information online, he must first enter in a specific username and password. Without this information, a person has no access to his account.
Varying levels of security
source: https://www.techwalla.com/articles/advantages-and-disadvantages-of-access-control-systems
