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Guides

End-to-end encryption: what it is and how it works 

End-to-end encryption has become one of the most effective solutions for protecting the privacy of online communications. But what exactly does end-to-end encryption mean, and why is it so important? This article explores in detail how this technology works, its benefits, and how it is used in everyday applications such [...]

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NFC and security: protecting contactless payments 

NFC (Near Field Communication) is a technology that has revolutionized digital payments by enabling quick and contactless transactions by bringing two compatible devices close together. However, despite its convenience, this technology raises significant cybersecurity issues that must be carefully considered to protect users' sensitive data. NFC is a short-range communication technology [...]

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Non-repudiation of data: A key aspect of cyber security

In the realm of cyber security, one of the fundamental aspects of protecting information is the concept of non-repudiation of data. This often-overlooked concept plays a crucial role in ensuring that none of the parties involved in an electronic transaction can deny having carried it out. But what exactly is [...]

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Antivirus quarantine: what it is and what it’s for? 

Antivirus quarantine is a fundamental function in computing, but many users do not fully understand its purpose and how to use it correctly. This article will explain in detail what antivirus quarantine is, how it works, and why it is essential for protecting your system. Antivirus quarantine is a function designed [...]

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The dangers of social network poisoning

Social networks have become a fundamental part of our daily lives. However, the growing use of social networks has also led to the emergence of new cyber security threats, one of which is social network poisoning. But what exactly is social network poisoning, and why does it pose such a [...]

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History of the phreakers: phone phreaking and hacking

In the vast world of cyber security, there is a figure that left an indelible mark: the phreaker. But who are the phreakers, and why have they played such a significant role in the history of telecommunications? The term "phreaker" comes from the combination of “phone” and “hacker,” and is [...]

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Network topology and cyber security 

The topology of a network is nothing more than the physical and logical arrangement of the nodes and links that form a network. It defines the structure of the connections between the various devices in a computer network, such as computers, servers and other nodes. This structure can be organised [...]

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Polymorphic malware: an evolving threat

Polymorphic malware represents one of the most sophisticated and insidious cyber threats in the field of computer security. This type of malware is particularly dangerous because it is able to modify its code dynamically. This makes it difficult, if not impossible, for traditional anti-malware programmes to detect it. But what [...]

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IT security protection: what it is and how to defend data 

IT security, practically synonymous with cyber security, has become a crucial element for the protection of personal and corporate data.  In simple terms, it refers to the set of measures and practices designed to safeguard computer systems and sensitive information from unauthorized access, damage, or attacks by cyber criminals.  With the rise [...]

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Eavesdropping: what it is and what it does 

The term "eavesdropping" may not be widely known, but it plays a crucial role in the realm of cyber security.  But what is eavesdropping? In short, it is a cyber attack where a malicious actor intercepts communications between two or more parties, often without them noticing. Eavesdropping (a translation of [...]

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GPS spoofing: what it is and how to protect yourself 

GPS spoofing is a growing threat in the world of computer security, capable of causing serious problems for both individuals and organizations. But what is GPS spoofing and how can we protect ourselves from it? It is the practice of sending false GPS signals (GPS spoofing) to a GPS receiver, [...]

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Stakeholder attack on a network: what it is and how to defend yourself against it 

A new type of attack is emerging among cyber threats: the stakeholder attack on a network. n stakeholder attack occurs when one of the stakeholders voluntarily or involuntarily facilitates an intrusion into an organization's computer systems. Unlike traditional cyber attacks, which often come from cyber criminals outside the company, in [...]

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DNS spoofing: what it is and how to protect yourself 

DNS spoofing, also known as DNS cache poisoning, is a malicious attack in which hackers manipulate the Domain Name System (DNS) to redirect traffic from legitimate websites to malicious ones. This type of attack can result in severe cyber security risks, exposing users to data theft, credential compromise, and other [...]

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ARP spoofing: what it is and how to protect yourself

ARP spoofing, also known as ARP poisoning (though there are differences between the two terms that we’ll explore later), is a cyber attack technique that exploits vulnerabilities in the ARP protocol to intercept network traffic, manipulate communications between devices and cause service disruptions. This article will explore how an ARP spoofing [...]

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Email spoofing: what it is and how to defend yourself

Table of contents Following the last article on spoofing in general, today we will delve into one particular type: email spoofing.  What is email spoofing?  What is email spoofing? It’s a technique used by cybercriminals to send emails that appear legitimate but actually come from forged sources. This spoofing attack [...]

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Phone spoofing: what it is and how to protect yourself

Phone spoofing is a fraudulent practice where scammers disguise the phone number they are calling from, making the phone call appear to come from another source. This technique is used to deceive the call recipient into thinking that the call is from a legitimate number, such as a call center, [...]

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Spoofing: protecting yourself from cyber attacks

In recent years, the term "spoofing" has become increasingly common in the field of cybersecurity. But what exactly does it mean? What is spoofing, and why is it so important to recognize and address it? What is Spoofing? Spoofing is a cyberattack technique in which a malicious actor disguises their identity, [...]

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Network attacks from inside and outside

Table of contents Operating systems and IT systems are constantly at risk of attacks both from within and from outside. Internal network attacks  Internal network attacks are among the most insidious because they are perpetrated by individuals who already have access to the corporate network. These attacks can be carried [...]

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System image security: complete guide

In the context of cybersecurity, data protection is crucial. One effective way to ensure data security is through the use of system images. A system image is an exact copy of a computer's hard drive, including the operating system, installed programs, and files. This tool is essential for Windows backup [...]

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The network security key: what it is and where to find it 

The security of our Wi-Fi networks is essential to protect personal and business data. A key component of this security is the network security key. We have already addressed network security keys in previous articles, but we have received further questions that we will answer in this article. The network [...]

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Bayesian spam filter: how it works

Unwanted email represents one of the main issues of modern electronic communication. To combat this threat, various spam filters help keep your inbox clean. Among these, the Bayesian spam filter is one of the most effective and widely used methods. In the third article dedicated to spam filtering methods, we [...]

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Static antispam filter: how it works

As mentioned in previous posts, antispam filters are essential tools to protect our email inbox from unwanted messages.  Among the various types of filters available, the static antispam filter stands out for its simplicity and effectiveness. In this article, we continue our exploration of antispam methods and explain how a static [...]

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How the heuristic antispam filter works

In yesterday's article, we talked about antispam filters. In this article and the following ones, we will delve deeper into the methods, starting with the heuristic antispam method, which is particularly used for email spam. Email is one of the main communication tools. However, with the increase in email usage, there [...]

Guides

Antispam: a guide to filters for protecting yourself from spam 

Atispam is a fundamental technology in cybersecurity designed to protect users from unwanted emails and spam calls. Its main function is to identify and block unsolicited communications, which may include unwanted advertising, phishing attempts and malware. But how exactly do these systems work, and what are the most effective methods to combat [...]

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