Even years after it was first released, Windows 7 continues to be one of the favourite operating systems worldwide. But with Microsoft announcing the end of its support for Windows 7, many PC users will need to upgrade or look for an alternative. But just because Windows 7 has reached the end of its life, doesn’t mean the software is no longer working. Windows 7 EOL means that Microsoft will no...
A stable network is characterised not only by the appropriate hardware structures, but also by a watertight security concept. In addition to back-up solutions and intelligent fail-safe systems, protection against external access attempts is a must. Intrusion detection systems (IDS) and intrusion protection systems (IPS) are an excellent addition to the classic firewall and are therefore a sensible...
Windows Defender is Microsoft’s free antivirus software that allows users to protect their PC from harmful programs and cyberattacks. Defender now comes preinstalled on most Windows machines. In the past, it has attracted criticism, but with the roll-out of Windows 10, it provides good baseline protection. Turning on Windows Defender enables you to use a range of modern antivirus features to...
How can the recipient of an email tell whether a message is actually coming from the person who appears to be sending it? Many scammers attempt to forge the email sender address. But you can protect yourself. You can verify the outbound mail server using the SPF (Sender Policy Framework), a popular authentication method. How does SPF work and what can it do?
UDP flood attacks have been used in the past for denial-of-service attacks. Even servers for major organisations have collapsed under the massive amounts of data. We’ll explain how a UDP flood attack works and provide you with an overview of its technical background, proven security measures, and how it is different from other DoS attacks.
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...
Data leaks and hacker attacks mean that internet security is becoming increasingly important for users. Standard passwords based on names and dates of birth can be cracked in seconds and give criminals access to all kinds of accounts. In combination with multi-factor authentication, TOTP can provide a solution: a password which is only valid for a short time. How does this work?
When it comes to network security, administrators focus primarily on attacks from the internet. But often times, the danger lurks in the internal network. If the LAN turns out to be a blind spot in the security IT, then internal attackers have an easy time. A popular method of attack is ARP spoofing. With this, hackers switch undetected between two communication partners in order to intercept,...
Sending data over networks is one of the most important and highest utilised 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...
Most Internet users likely will have heard of phishing, but what is smishing? The new threat works via mobile phone. We explain how the SMS scamming method works and what content cyber criminals frequently utilise for SMS phishing. Learn what to watch out for in order to distinguish an authentic SMS from a phishing SMS.
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