Kategorie: ‘IT-Security’
Zero-Day Vulnerabilities
Source: Own Illustration
Imagine working every day on a computer that seems to run smoothly. Everything works as usual – until one day a security problem is discovered that nobody knew about. Suddenly, a security vulnerability is discovered that attackers have known about for weeks or even months and taken advantage of undetected. This type of vulnerability is known as a zero-day vulnerability. In this blog post, we’ll explore what exactly zero-day vulnerabilities are, why they are particularly dangerous and how best to deal with them.
Updates Again! – Why Are Regular Software Updates So Important?
Source: Stockvault
An update is the updating of the version of a software, information or version. In the case of software updates, for example, a distinction is made between security and firmware updates, and in the case of information updates, for example, between situation, news and status updates. Version updates usually refer to technical devices.
Beware of Tech Support Scams: How You Can Protect Yourself
Source: Freepik
In today’s digital world, we are constantly connected to technology – whether it’s through our smartphones, computers or other electronic devices. Unfortunately, there are people who take advantage of this fact to scam the unsuspecting. One common scam that many fall victim to is the tech support scam. In this blog post, we want to explain how the scam works and how you can protect to protect yourself.
Firewalls – The OSI Model
Source: Freepik
Welcome to the third and final part of our blog series on firewalls! In the first post we looked at the role of firewalls, and in the second we looked at the types of firewalls. In this post, we take a look at the OSI model (Open Systems Interconnection Model) and the different levels at which firewalls can operate.
The Impact of Social Media on It Security
Source: Freepik
Nowadays, almost everyone can be found on one or more social media platforms and runs one or more profiles, some of them for personal and others for professional purposes. Some use them to network, share photos of special events or stay in touch with their friends. Others use them to promote their company, association or organization. Although social networks offer numerous benefits and have become an integral part of our everyday lives, they also pose a number of risks, particularly in terms of IT security. In this post, we would like to highlight the various aspects of the impact of social media on IT security and provide an insight into how these challenges can be overcome.
Halloween: The Nightmares of Cyber Security
Source: Freepik
Fear. A feeling that probably all of us are familiar with. Especially around Halloween, the potential for scares increases. Be it the fear of disguised, made-up figures or even the worry that your sensitive data will fall into the hands of unauthorized persons. Perhaps it’s no coincidence that October of all months is IT Security Month? In this article, we take a look at a few “IT horror stories”, how you can protect yourself from them and share some interesting figures.
Email Security – Evaluation and Application of the SPF Policy
Source: Own illustration
In this post of our email security series, we would like to inform you about an upcoming tightening of the SPF policy that will apply to RWTH Aachen University as of December 5, 2024. The change will prevent RWTH email addresses from being used as sender addresses by mail servers outside of RWTH Aachen University in the future. This will further increase email security at our university. Please note that this article is mainly intended for mail administrators of RWTH institutions. (*)
Basics at RWTH: E-Mail
Source: Freepik
As part of our blog series “Basics at RWTH”, today we are introducing you to the RWTH e-mail service, which is essential for your daily communication in everyday university life. We have compiled the most important information for you so that you can get started quickly and easily with your e-mail inbox – if you haven’t already done so.
Types of Firewalls
Source: Freepik
In the first part of our blog series, we covered the basics of firewalls: what they are, how they work, and why they are essential for network security. Today, we will take a closer look at the different types of firewalls used in IT-Security.
IT Professionals Day: Invisible Heroes
Source: Freepik
On September 17, 2024, we are celebrating IT Professionals Day – a global day of honor that puts the spotlight on all those people who often work behind the scenes but are indispensable to the functioning of our digital world. At the IT Center of RWTH Aachen University, we would like to use this occasion to pay well-deserved tribute to the IT professionals, the invisible heroes, who work behind the scenes every day.
