12
Jan

Meltdown and Spectre: The Pain Has Only Just Begun

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Ars Technica has published an excellent in-depth article detailing how the upcoming software and hardware patches designed to deal with the Meltdown and Spectre vulnerabilities will likely have a negative impact on computer performance. To recap: modern high-performance processors perform what is called speculative execution. They will make assumptions about which way branches in the code […]

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27
Dec

Critical Vulnerability Patched in Mozilla Thunderbird

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Via Ars Technica: Mozilla has recently released a major upgrade to the Thunderbird email client that addresses a critical buffer-overflow vulnerability that was discovered earlier this year: The bug, rated critical by the Mozilla Foundation, is CVE-2017-7845, which is a buffer overflow vulnerability affecting only Windows users. “A buffer overflow occurs when drawing and validating […]

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02
Nov

Excel Tips: Using Colors

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Most folks want visual clues to make things easier to read and to comprehend. Our brains can identify and process visual clues many times faster than they can process text or numeric information. Using colors in spreadsheets can not only help us navigate, they can also facilitate comprehension. There are a lot of different techniques […]

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25
Oct

New Ransomware, Dubbed “Bad Rabbit”, Strikes Europe

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Endgadget is reporting on a new malware attack underway in in Europe. Dubbed “Bad Rabbit”, the attack takes advantage of widely known flaws in Adobe’s Flash product to trick users into downloading a fake update from a compromised web site. Once installed, the update encrypts user files, rendering them inaccessible until a ransom demand of […]

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21
Sep

Excel Tips: Using Autofilters and Subtotal() – Part Two

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[In Part 1 of this series, we discussed how to use Autofilters to manage large sets of data, enabling you to work with only the records that are relevant. In this article we will explore how the Subtotal function in Excel can leverage the power of filters even more.] Sample Data Our sample data set […]

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21
Sep

Excel Tips: Using Autofilters and Subtotal() – Part One

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Like most programs these days, Microsoft Excel is far more powerful than most folks realize. While you may not use 90% of its power, I will share with you what I think are two of the most power features that beginning Excel users can master right away. They are easy to access and understand and […]

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