Encryption

IP Spoofing: Fundamentals and counter-measures

IP Spoofing: Simple manipulation of data packets by attackers

Sending data over networks is one of the most important and highest utilized functions of the modern computer era. But the structure of the necessary TCP/IP connections makes it all too easy for criminals to intercept data packets along their way and either view or alter their contents. One of the most common methods of attack is IP spoofing, which allows DoS and DDoS attacks, among other things...

Spear phishing

Spear phishing: targeted attacks on your data

Internet users are constantly the target of cyberattacks. Most attacks are easy to fend off, but a new form of scam has proven to be especially dangerous. Spear phishing messages don’t contain absurd claims or bad spelling. These deceitful messages target specific individuals and look frighteningly real. How do these attacks work?

What is MAC spoofing?

What is MAC spoofing?

MAC spoofing is a method by which unique hardware addresses are masked using a Locally Administered Address (LAA) in the software. MAC spoofing can offer protection for your privacy when using public LAN or WLAN networks, but can also be used for illegal network activities. We explain to you here how MAC spoofing works and which settings in Windows must be accessed in order to change your MAC...

HSTS: Reliably secure your HTTPS connections

HSTS: How the HTTPS expansion works

HTTPS, the network protocol for TLS-encrypted data transfer online can be circumvented in some cases. The danger is that encrypted websites can be accessed via unencrypted HTTP. But the HTTPS extension HSTS (HTTP Strict Transport Security) forces website access via TLS encryption, closing the security gaps that hackers like to use to intercept the HTTPS connection during transport using...

Comparison of the best antivirus programs

Antivirus software: Which software is best?

Antivirus software has sadly become indispensable as new types of threats against your system emerge regularly. Viruses, worms, Trojan horses, and many other types of malware threaten to infect your system and could cause significant damage. To counteract these threats, software makers try to fight off malware attacks with intelligent antivirus programs. Find out which rank top in our antivirus...

Zero-day exploit

Zero-day exploit: Explanation and protection measures

The risk for businesses to fall victim to a zero-day exploit has increased in recent years. More and more often, cybercriminals can take advantage of as-yet undiscovered weak points in business software in order to steal or manipulate data. It is difficult to protect against these attacks, but businesses can take some measures to improve their security.

HTTPoxy: Behind the CGI vulnerability

HTTPoxy: Threatening the security of CGI applications

Fifteen years after the discovery of the security flaw HTTPoxy, it’s still an issue with CGI applications. The reason for this is the fact that the Common Gateway Interface standard provides the use of environment variables to process HTTP requests. These can include header contents that modify the original proxy configuration, allowing hackers to redirect data packets to a completely foreign...

Terminal Servers – the Secret Behind Remote Hosts

Terminal servers: definition, basics, and advantages

In the days of mainframe computers and the first smaller networks, terminals were a crucial building block for sharing hardware and software resources. It is no coincidence that terminal servers – the central administrative entity of such networks – are in demand decades later, now that applications are to be made available to multiple users.

S/MIME: the standard method for e-mail encryption

S/MIME: how to encrypt and sign your e-mails

If you send an e-mail without additional security measures, it’s like sending a postcard: if everything goes as planned, the information should arrive unchanged and unread in the recipient’s inbox. However, if someone intercepts the card or the e-mail in transit, they can read the contents without any problem and make as many changes as possible. Just like you would use an opaque envelope to...

WLAN security: the best protection for your network

WLAN security: how to make your wireless network into a fortress

When you’re traveling with portable devices, you’ll find public WLAN everywhere, giving you access to the world wide web. Even in residential and work spaces, practical wireless networking is widespread. It’s easy to forget that there’s a risk involved when transferring data using one of these access points. In the following article, we explain the biggest security risks and show you how to make...


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