Archive for the MS Office Tag

External Link Security Broken in Excel

miqrogroove
2019-08-02T14:17:26+00:00

Excel Security Warning About Linked Workbooks

After linking two local Excel files by a simple reference to a cell in another workbook, I began seeing an ominous error:

SECURITY WARNING  Links to external sources could be unsafe. If you trust the links, click Update. Click for more details.

This behavior was observed in version 1907 of Excel from the Office 365 software package.

Warnings of this nature should be taken seriously.  In this case, however, the message has been seriously mislabeled.  Clicking into the details brings up an ancient Help page for Excel 2007.  Searching for similar situations online brings up some misleading instructions.

If you are experiencing the situation described above, continue reading below for a simple workaround and more background information.

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2 Aug 2019

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Security

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Virus Infected Email

miqrogroove
2019-08-02T13:58:52+00:00
Screenshot of a fake Office 365 error message.

Danger! Do Not Touch!

If you see a Word document containing the following phrase, it is fake and should be deleted immediately:

This document created in online version of Microsoft Office Word

There is no such message ever issued by legitimate software.

Instructions included with the file asking the user to “Enable content” should raise red flags and serious concerns about the file’s origin.

A quick scan using an online virus checker confirmed this file is infected.  Be careful out there.

19 Dec 2017

Category:
Security

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