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Email is one of the main and the only independent forms of modern communication, with the global email user base hitting 4.26 billion at the end of 2022. Given email’s prominence, it is naturally a ...

Domain authentication has been touted as a valuable tool in the fight against spam. In theory, if a sender’s IP address has been authenticated, that is supposed to be a good indicator of the validity ...

Elon Musk-owned X (formerly Twitter) is starting to officially sunset the twitter.com domain as part of its complete switchoverto x.com. Those who rely on hardware security keys or passkeys for ...

Microsoft's Active Directory PKI component commonly have configuration mistakes that allow attackers to gain account and domain-level privileges. As the core of Windows enterprise networks, Active ...

I want to build a web service. What I mean by this is that I want to stand up a server somewhere at some.domain.foo, with some database on the server or whatever, and construct a series of URIs that ...

Microsoft’s May Patch Tuesday update is triggering authentication errors. Microsoft is alerting customers that its May Patch Tuesday update is causing authentications errors and failures tied to ...

Spam is perhaps the oldest of security problems affecting Internet users widely. A lot of effort has been put into fighting it, and yet it persists. Even the most advanced of standards for combating ...

As CISA noted, "installation of updates released May 10, 2022, on client Windows devices and non-domain controller Windows Servers will not cause this issue and is still strongly encouraged." "This ...