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Tag: Outlook

How to prevent WINMAIL.DAT attachments in Exchange Online by disabling TNEF

I’ve run into this problem a handful of times over the last few years. An Exchange user sends and e-mail with attachment(s) to a non-Exchange user and the recipient receives nothing but a WINMAIL.DAT file that they cannot open. The most commonly preached resolution was simply to tell the sender to stop using the Rich Text Format (RTF) when sending…

Microsoft Security Advisory 3010060 – Not expecting that attachment? Be careful…

Microsoft warned users today regarding malicious Microsoft Office files that can grant the sender the same level of access that the person opening the attachment has. The vulnerability affects all supported releases of Windows. While any Office file can be used to execute this attack, PowerPoint files appear to be the most commonly used right now. As always… if you’re…

Critical WordPress update released to patch unauthenticated privilege escalation REST API vulnerability... Would you like to know more?
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