Security

Keylogger
What is a Keylogger?
  • Security

Keyloggers are programs or devices that get access to your credentials by recording your keystrokes. Keyloggers hide in operating system software and leak data. Some keylogger hardware is even more sophisticated, since it can document your keyboard behavior or tap directly into the data stream. Learn how keyloggers work and which variants are available in our guide. We also give you tips on how to...

What is a Keylogger?
Kerberos
What ist Kerberos authentication and how does it work?
  • Security

What is Kerberos and how does it work? When using unsecure networks, you may expose yourself to cyberattacks. However, a number of security protocols exist that make it difficult for hackers to read sensitive data. Kerberos is a widely used authorization technology based on a trusted third party. Read on to find out how Kerberos works.

What ist Kerberos authentication and how does it work?
ISO 27001
ISO 27001
  • Security

By complying with the ISO 27001 standard, companies can prove they carefully handle information and plan for exceptional circumstances. Public certificates and standards according to the ISO certification create trust among consumers and attest to the company’s secure and tested treatment of data. The certification is performed by an independent institute.

ISO 27001
IP Spoofing: Fundamentals and counter-measures
What is IP Spoofing?
  • Security

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...

What is IP Spoofing?
HTTP Flood Attacks
What is an HTTP flood attack?
  • Security

DDoS attacks are occurring more and more frequently. Among the most insidious are HTTP flood attacks. Disguised as regular users on the website, thousands of complex requests are sent to the server until a system failure occurs. Here you will learn what exactly an HTTP flood attack is, how you can identify them, and how you can protect yourself from them.

What is an HTTP flood attack?
Hash table
Hash table | Fast database access to hash values
  • Security

A hash table is created using the hash function. This is a method for reducing digital information in such a way that extensive data sets can be retrieved quickly in internet-based databases. This method also makes it possible to implement sophisticated security features using encryption when transferring data.

Hash table | Fast database access to hash values
Hardware firewall: the more stable firewall solution
What is a Hardware Firewall?
  • Security

Most computer users are at least aware of the term firewall. When activated, they help protect computers. But announcements about blocked applications can become a source of irritation for many users, especially when the background information for such messages is unknown. But how do firewalls work? And what role do hardware firewalls play in protecting your computer?

What is a Hardware Firewall?
Encryption software
Encryption software and tools in comparison
  • Security

A good encryption software keeps your data secure. It enables you to easily protect a folder, hide hard drives, or sync encrypted data to a cloud, for example. Find out more information about recommended encryption tools and what they do, and get an overview of their advantages and disadvantages in our dedicated article.

Encryption software and tools in comparison
Encryption methods: An overview
Encryption methods
  • Security

E-mail, instant messaging, or voice-over IP: If you want to communicate over the internet, you should make sure that the data transfer process can be trusted. The same goes for the World Wide Web. With online banking and digital shopping, money transactions are increasingly being carried out online. Popular encryption methods like DES, AES, or RSA should guarantee the security of passwords, credit...

Encryption methods
DRaaS
Disaster Recovery as a Service (DRaaS)
  • Security

Throughout the course of digitization, employees and employers became aware of the importance of backups. The 3-2-1 rule was considered the golden rule - where two redundant copies of each file are kept. As technology continues to evolve, cloud-based solutions are becoming more popular. Thus, Disaster Recovery as a Service has established itself as an important cloud service.

Disaster Recovery as a Service (DRaaS)