Implementing SPF Fail policy using Exchange Online rule (dealing with Spoof E-mail attack) | Phase 2 production | part 3#3 5/5 (4)

The current article is the last article in the article series, in which we review how to implement SPF Fail policy using Exchange Online rule. In the present article, we will discuss how to apply the second phase of our project, in which, when the Exchange rule identifies an event of “SPF = Fail,” the…

Implementing SPF Fail policy using Exchange Online rule (dealing with Spoof E-mail attack) | Phase 1 – learning mode | Part 2#3 5/5 (7)

In the current article, we will review how to implement an SPF Policy for incoming mail by using an Exchange rule. In our scenario, we want to identify an event, in which hostile element tries to execute a Spoof mail attack by presenting himself, as a legitimate recipient who uses an E-mail address that includes…

Implementing SPF Fail policy using Exchange Online rule (dealing with Spoof E-mail attack) | Introduction | Part 1#3 5/5 (3)

In the current article, I would have to provide you a useful way, for implementing a mail security policy that relates to an event in which the result of the SPF sender verification check is “Fail.” If we want to be more precise, an event in which the SPF sender verification test result is “Fail”,…

How to simulate Spoof E-mail attack and bypass SPF sender verification? | 2#2 5/5 (8)

In the current article, we will demonstrate how to simulate Spoof E-mail attack, that will bypass existing SPF sender verification implementation. The current article series include two articles. The former article is – How can hostile element execute Spoof E-mail attack and bypass existing SPF implementation? | introduction | 1#2 Disclaimer For the avoidance of…

How can hostile element execute Spoof E-mail attack and bypass existing SPF implementation? | introduction | 1#2 5/5 (2)

In the current article series, we will learn about a structured vulnerability of the SPF mail standard, which can be easily exploited by a hostile element. The hostile element that is aware of this SPF vulnerability, can bypass the existing “SPF wall” that was built for protecting our organization recipients from Spoofing or Phishing attacks.…