Encryption

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

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 ensure privacy with your post, e-mail encryption helps to ensure privacy with e-mails. The guide reveals why the standard S/MIME procedure is suitable for this purpose and how it ensures your e-mails arrive safely. [...]  

Sign e-mails with a digital signature

Spam e-mails may be annoying, but they’re mostly harmless. What’s more problematic is phishing – a technique whereby fraudsters try to con you by posing as trustworthy sender addresses in an attempt to get hold of sensitive data. These messages appear genuine too, because without a digital signature, it’s very easy to assume a trusted identity online. In order to protect customers and their own reputations, businesses operating online should be fully aware of the importance of electronic signatures. Find out more about how they function here. [...]  

Two factor authentication: Protection for your accounts

Poorly secured accounts on the web have repeatedly led thousands of people to become victims of hacking or phishing attacks and lose control of their accounts. With a two factor authentication, accounts can effectively be protected against such cases. Because more than just a password is required for log-in, internet criminals can’t do much with the spied credentials. Here, we explain how two factor authentication works, and which methods exist for securing your accounts. [...]  

HTTPoxy: Behind the CGI vulnerability

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 server. [...]  

Finding a website host: how to search successfully

If you want to release a new web project today, you need to find the right host. Hosts have become a popular alternative for large companies, since they enable convenient outsourcing of certain work areas or data, saving company resources. But how do you know which host and which hosting package best meets your needs? And why is the provider’s security concept such a crucial criterion nowadays? [...]  

Comparison of the best antivirus programs

Antivirus programs have become essential for the security of our computers. Viruses, worms, trojans, and many other types of malware threaten to infect the system and cause considerable damage. Losing personal data and the consequences resulting from this can be extremely irritating. Software manufacturers are trying to combat malicious malware attacks with the help of intelligent antivirus programs. In our overview, we introduce the well-known antivirus products and provide detailed information about what to consider when choosing antivirus software. [...]  

HSTS: Reliably secure your HTTPS connections

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 man-in-the-middle attacks. [...]  

Encryption methods: An overview

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 card numbers, and other sensitive data. But what do these cryptic abbreviations mean, and how does encryption work on the internet? [...]  

WLAN security: the best protection for your network

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 your WLAN more secure. [...]  

What is a VPN (virtual private network)?

VPN implementations offer an affordable alternative for locally connecting networks, as well as making network resources available for external devices. In contrast to corporate networks, no private communication network is required. Instead, like the internet, VPNs rely on networks, and protect sensitive data through a process known as tunneling. [...]