Encryption technologies: Basics of Cryptography

Encryption technologies: Basics of Cryptography

Cryptography, a Greek word meaning “secret writing,” is a technique used to securely store and transmit data. It has been used since antiquity in military and diplomatic communication. The message to be encrypted is called plaintext, which can be converted into...

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Security alerts | February 2023

Security alerts | February 2023

Below you will find information about the current security alerts of February 2023.   VMware ESXi – CVE-2021-21974 A new vulnerability was reported by security researchers. This article describes an explosion in the compromises of VMware ESXi hypervisors with...

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OSI model from a different angle | Infographic

OSI model from a different angle | Infographic

  The Open Systems Interconnection model (OSI model) is a conceptual model that 'provides a common basis for the coordination of [ISO] standards development for the purpose of systems interconnection'. In the OSI reference model, the communications between a...

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How to launch command prompt & powershell from MS Paint

How to launch command prompt & powershell from MS Paint

This guide will show you how you can launch cmd and Powershell with help from Microsoft Paint. Sometimes organisations environments are being locked down and are preventing users from right clicking and opening tools such as cmd.exe or powershell.exe. When I face that...

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A glimpse into Black Cell’s 2022 annual report

A glimpse into Black Cell’s 2022 annual report

We are thrilled to offer a sneak peek into our 2022 annual report, showcasing our remarkable growth and achievements over the past year. The report highlights a few impressive figures, including a 20% increase in the number of employees (from 25 in 2021 to 30 in 2022)...

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