Computer and Information Security Blog at the moment..

Authentication, Access Control and Security Policies , these three concepts define modern-day protection in the world of technology. But first let's define each one of them. What is Authentication ? "The process of determining whether someone or something is, in fact, who or what it declares itself to be" (Rosencrance, 2018). How authentication is used: Authentication technology provides access control for systems by checking to see if a user's credentials match the credentials in a database of authorized users or in a data authentication server. Generally, a user has to choose a username or user ID and provide a valid password to begin using a system. User authentication authorizes human-to-machine interactions in operating systems and applications, as well as both wired and wireless networks to enable access to networked and internet-connected systems, applications and resources. Authentication factors: Knowledge factor: "Something you kno...

"Legal ethics is a term used to describe a code of conduct governing proper professional behavior, which establishes the nature of obligations owed to individuals and to society" (FindLaw, 2018).  The fact that people or institutions have a right to do something doesn't imply that they should do it. The law sets out what people are free to do, regardless of the effect that those actions have on others. For example, in Mexico The Federal Civil Code establishes 14 years of age as the minimum age for girls to marry and 16 years of age for boys. It is legally posible for mature adults to marry young girls but ethically it's not right because these are harmful practices that not only do they seriously affect the life, health, education and integrity of girls, but also violate the human rights of every little girl who has the misfortune of being a victim of this awful practice. Having the legal right to do something is not the same as fulfilling one's ethical ...

The fact is there's no such thing as a perfectly, 100& secure computer system. There will always be bugs and security experts know that. So that were System Architects employ a strategy called defense in depth, which uses many layers of varying security mechanisms to frustrate attackers. A common reference to this is looking back at medieval times where you have a to keep safe the King of a land and it's castle. Attackers or enemies need to beat or dodge various obstacles in order to gain access to the castle and conquer it, but int this context we're talking about the most common forms of computer security called   Cryptography. Whats is Cryptography? The word comes from the roots 'crypto' + 'graphy' which roughly translates to  = Secret Writing. In order to make information secret you use Cipher, an algorithm that converts plain text into CipherText. Whats is Encryption? T...

Private data and civil liberties are at risk nowadays there isn't enough transparency so that people are aware of how their data is being shaped and circulated. Most users don't have technical expertise and leveraging internet power requires those set of skills and people with those with enough abilities always stay ahead of institutional power or controls. That is why cyber crimes are still present, even as the government power gets better. This is why whistleblowers can cause so much damage. Institutional controls let companies use data but they put very strict conditions to prove that they are not misusing that data. Privacy is about consumer trust, it's about online user trust.   In the digital age, we typically apply the concept of data privacy to critical personal information, also known as personally identifiable information (PII) and personal health information (PHI). But why is privacy important? Privacy is a limit on government power, as wel...

Setting up the Blog for Computer and Information Security Course

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User interface design and software verification and validation User interface design  is the  design  of  user interfaces  for machines and software with the focus on maximizing usability and the  user  experience.  focuses on anticipating what users might need to do and ensuring that the interface has elements that are easy to access, understand, and use to facilitate those actions. UI brings together concepts from  interaction design ,  visual design , and  information architecture . They are 19 principles of  User Interface Design: Clarity is job  Interfaces exist to enable interaction Conserve attention at all costs Keep users in control Direct manipulation is best One primary action per screen Keep secondary actions secondary Provide a natural next step Appearance follows behavior Consistency matters Strong visual hierarchies work best Smart organization reduces cognitive load Highlight, don't...