Authenticated Received Chain ARC Preview

Sender Reputation and Email Security – Part 1: Authenticated Received Chain (ARC)

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Procedures for checking sender reputation have existed for some time. These provide an effective way to detect fake sender domains and thus prevent phishing attacks. Although they are easy to implement and do not require expensive tools, many companies do not apply them – and thus fail to secure their organization in the best possible way. Furthermore, they fall behind in direct comparison with criminals, because they are also constantly improving their setup.

In our series of articles on sender reputation, you’ll learn how each method works and how they can help you protect you and your organization from phishing with fake senders and other cyberattacks, and optimize your email security. 

Part 1 focuses on the latest method that can be used as part of sender reputation checks: Authenticated Received Chain (ARC). 

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E-Mail Verschlüsselung für Behörden

Net at Work and D-TRUST join forces for secure communication with public institutions

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Net at Work and D-TRUST join forces for secure communication with public institutions An increasing amount of electronic communication from public institutions makes stronger protection against access by unauthorised third parties necessary. The Sicherer Bürgerdialog initiative shows that effective email encryption does not have to be complicated or expensive. Together with D-TRUST, a company of […]

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32Guards Preview

One year of 32Guards – and that’s just the beginning 

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At the turn of the year 2019/2020, the time had come: 32Guards began to send assessments of emails to the participants of the 32Guards beta. Over the course of 2020, the repertoire of detections grew significantly. In this article, we will look back at a number of developments and show how 32Guards became increasingly active, especially in the second half of 2020.

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Emotet stirbt den Emotod

Emotet infrastructure shattered

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In a joint operation, law enforcement agencies from Germany, the Netherlands, Ukraine, Lithuania, France, as well as England, Canada and the United States have smashed the infrastructure of the Emotet malware. Emotet was previously considered the most dangerous malware in the world and in the vast majority of cases was used to extort ransom from victims.

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Schutz vor gefährlichen Kurz-URLs

32Guards offers protection against dangerous short URLs

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In his analyses, 32Guards has repeatedly noticed short URL services in a particularly negative light in recent months. These URL shorteners generate an alternative, short URL that can be used on Twitter, for example. In this way, the number of characters used in a post can be reduced. The fact that the use of these services can cause problems is, of course, already due to the fact that the actual target of the URL is not recognizable – virtually an invitation to phishers and other cybercriminals.

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(Fast) alle Wege führen in die Cloud Preview

(Almost) All roads lead to the cloud

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The trend towards cloud-based IT services is unbroken. But not only that: entire solutions or IT infrastructures are no longerpremises but have migrated to the cloud. The field of email security is also undergoing radical change, with the result that some providers in Email Security sectorhave already announced that they will no longer offer on-premises solutions at all in the foreseeable future and will switch completely to cloud offerings.

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