Spam

Click fraud: how to out fraudulent clicks

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 measures that you can take. [...]  

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. [...]  

Referral spam: causes 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 countermeasures can help fight them off. [...]  

Newsletter KPIs: indicators in e-mail marketing

In e-mail marketing, KPIs (Key Performance Indicators) are extremely important for analysing campaigns. Various indicators can help you to determine the final success rate of your marketing activities. But how exactly can you measure metrics like a newsletter’s conversion rate, opening rate, and click-through rate? And which other KPIs are important? [...]  

Captcha | codes and images for spam protection

For years, the captcha has been a necessary evil for securing interactive web applications (e.g. online forms) against spam. The fully-automatic public Turing test distinguishes between computers and humans. The test exposes which automatic queries are performed by spam robots, which then minimises the administrative effort needed for interactive websites. We present the most common types of captchas, address the accessibility issue, and provide alternatives to traditional captcha technology. [...]  

How to optimize professional e-mail signatures

A professional e-mail signature is a standard part of business communication. Private users can also stand to gain from these e-mail additions. But what exactly does a good e-mail signature contain? And which information should your company include when sending messages to customers or business partners? [...]  

The double opt in process

An inbox full of spam is enough to grind anyone’s gears. Too many marketers try to worm their way into the inboxes of potential customers without seeking permission. The double opt in process is used in the UK to try to combat spam. To ensure you don’t drive any customers away or ruin your company’s reputation by sending undesired newsletters, you should look into the double opt in process. [...]  

The e-mail header and its role in the world of spam

Have you ever been curious about how an e-mail arrives at the designated recipient? The header area of an e-mail contains a lot more information than just the sender, the subject, the recipient and the date the e-mail was received. By displaying all of the e-mail header you can determine whether the e-mail falls into the spam category. Learn how to decipher the information in an e-mail header. [...]  

How to recognize spam e-mails and prevent them

Billions of spam e-mails are sent daily. These annoying messages cost time and get on your nerves, especially when malware finds its way onto your computer or private data falls into the wrong hands. Just a few small tricks and a bit of caution when dealing with e-mails can remedy the situation. [...]