How to recognise and prevent email impersonation in Switzerland

Marc Sumi | 8.08.2023
A comprehensive guide for Swiss companies on fighting email impersonation and spoofing

Email impersonation is a growing threat to companies in Switzerland. These attacks can have serious consequences, from financial losses to the theft of sensitive data. In this blog post we explain how to recognise email impersonation and how to protect yourself against it.

Email impersonation vs. email spoofing

Although the two tactics are related, they are not quite the same. In email impersonation, the cybercriminal creates an address that looks similar to the real one. In spoofing, the attacker changes the email header so that a false email address is displayed.

Types of email impersonation

  1. Root domain impersonation: Cybercriminals create root domains that resemble legitimate ones by using substitute characters.
  2. Top-level domain impersonation: Here the top-level domain (e.g. .ch for Switzerland) is replaced by another one that the recipient does not notice.
  3. Subdomain impersonation: In this case the subdomain is manipulated to fake a legitimate email address.
  4. Display name impersonation: The display name is chosen to resemble the real name, which is often the case on well-known email platforms.
  5. Username impersonation: Here a username is created that looks similar to the real one but is hosted on a free email platform.

Protecting against email impersonation in Switzerland

  1. Employee training: Training employees is crucial to preventing email attacks.
  2. Machine-intelligent email security solutions: In Switzerland, companies such as SecureIT and Xorlab are leaders in providing intelligent email security solutions.

Conclusion

Email impersonation remains one of the most insidious and potentially devastating cyber threats to companies in Switzerland. The variety of methods, from root domain to username impersonation, shows that cybercriminals are becoming ever more sophisticated. It is therefore essential that companies not only rely on technological solutions but also invest in training their employees. Combining the two creates a multi-layered defence strategy that minimises the likelihood of a successful attack.
Companies such as Xorlab are pioneers in developing machine-intelligent email security solutions, which play an important role in protecting against such attacks. But technology alone is not enough. A holistic approach that takes the human factor into account is crucial for long-term protection against email impersonation.
At a time when cyber threats are becoming ever more complex, it is essential for Swiss companies to act proactively and to invest both technological and human resources in protecting their digital identities. Only then can they arm themselves effectively against the growing wave of email impersonation and protect their business processes and sensitive data.

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