Huge Amount of Sites Found in Certificate Transparency Logs, (Tue, Sep 24th)

I’m keeping an eye on the certificate transparency logs[1] using automated scripts. The goal is to track domain names (and their variations) of my customers, sensitive services in Belgium, key Internet players and some interesting keywords. Yesterday I detected a peak of events related to the domain ‘’. This domain, owned by Microsoft, is used to provide temporary remote access to Windows computers[2]. Microsoft allows you to use your own domain but provides also (for more convenience?) a list of available domains. Once configured, you are able to access the computer from a browser:

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