Security

Server Name Indication

Server Name Indication (SNI): What’s behind the standard?

What is server name identification, really? Encryption technologies play a big role when it comes to surfing on the net. Credit card data and other personal information must not fall into the hands of criminals. For now, TLS is one of the protocols used for this purpose. But it has a disadvantage: it only functions when each IP address only hosts one domain. If multiple virtual services are...

Browser fingerprints: tracking without cookies

Browser fingerprints: the basics and protection options

In recent years, so-called browser fingerprinting has established itself as a tracking method that doesn’t rely on the use of cookies. Web servers capture different characteristics from visitors’ browsers and determine their digital fingerprint based on them. They enable visitors to be recognized at a later date. While some information is automatically transmitted, it is mainly active elements...

Click fraud: how to out fraudulent clicks

How to protect yourself from click fraud

Every year, click fraud costs the advertising industry billions. An increasing amount of advertising operators have to deal with the fact that their ads often don’t reach their intended targets due to artificially generated clicks through the likes of link farms or bot nets that seek to deplete advertising budgets. We take a closer look at the topic of click fraud and show you some counter...

Online identity theft protection

Online identity theft protection

Many only know internet identity theft and similar crimes from movies or television. But stories of online fraudsters are not just mere phantasies of screenwriters; for many the experience is all too real. Online identity theft has become more and more of a problem over the past few years, and everyone is a potential victim. We have compiled some preventative steps than can help you stay out of...

Encryption methods: An overview

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...

SSL stripping – how to protect your web project

SSL stripping: Basics and protection options

Data transmission via SSL/TLS is one of the most effective means to give a web project more security. Even before packets are sent, powerful algorithms ensure the encryption of the information. If third parties capture the data on the transmission path, the true content remains hidden from them. However, it becomes problematic if attackers are active with their tools, even before the encryption...

Tips for better website security

Website security: how to protect your web presence

Would you leave your window open at night if you knew there were intruders lurking about? Obviously the answer to this question is ‘no’. Many companies and individuals leave their virtual window open to cyber criminals by not adequately protecting their websites. Website security is an extremely important topic. Only by regularly carrying out security checks and following the proper precautions...

Content Security Policy: how websites are becoming safer

Content Security Policy: more security with web content

Websites can be full of security risks, especially when it comes to active content like JavaScript. Cross-site scripting enables cyber criminals to modify this content for their own purposes. This is dangerous for website operators and especially for internet users. The Content Security Policy tries to reduce this risk. Learn what’s behind the security standard and how it works.

What is a reverse proxy?

Reverse proxy server – core components in security architecture

Cyber criminality is a big issue for most companies’ IT departments. Online attacks threaten the security of private networks and cause millions of dollars of damage per year. Popular targets are servers that provide online services and therefore require a permanent internet connection. An extra layer of security can be applied by using an upstream network component – the reverse proxy. This...

Referral spam: causes and countermeasures

Referral spam: attack patterns and countermeasures

Do you find that lots of the traffic that arrives on your site comes from suspicious sources? There’s no need to worry since website operators encounter inconsistencies in reports from analysis tools (such as Google Analytics, Piwik, or etracker). The reason: referral spam falsifies visitor statistics. Learn how hackers can manipulate referrer information and traffic data, as well as which...


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