Category Archives: Back To Basics

Start Sweating the Small Stuff

In his recent New York Times article, “That Daily Shower Can Be a Killer,” renowned geographer Jared Diamond observes how Americans tend to greatly exaggerate risks that are sensational and beyond our control—like plane crashes and nuclear radiation—yet underestimate the … Continue reading

The Definitive Guide to Cryptographic Hash Functions (Part II)

Last time I talked about how cryptographic hash functions are used to scramble passwords.  I also stressed why it is extremely important to not be able to take a hash value and work backwards to figure out the plain text … Continue reading

The Definitive Guide to Cryptographic Hash Functions (Part 1)

Give me any message and I will create a secret code to obscure it. Try it! Try another one. This is called hashing—a technique often used to secure passwords (among other things).  Instead of keeping your secret, “dog”, in plain … Continue reading

The Difference Between Everyone and Authenticated Users

In order to maintain proper access controls, it’s crucial to understand what every entity on an access control list (ACL) represents, including the implicit identities that are built into a Windows environment. There are a lot of built-in accounts with … Continue reading

Who Is TRYING To Access Your Data?

In our previous post we discussed how over 80% of data breaches are considered “opportunistic.” The majority of them are regular employees who have excess permissions, who abuse their access to obtain sensitive information. When we take these two things … Continue reading

Why Do SharePoint Permissions Cause So Much Trouble?

SharePoint permissions can be the stuff of nightmares.  At Varonis, we get a chance to meet with a lot of SharePoint administrators and it’s rare that they’re not exhausted trying to manage user permissions. SharePoint’s a useful collaboration platform—and Microsoft’s … Continue reading

Your Mailbox is Almost Full

This again. It happens a few times a year—an automated email telling me I’m going to have to make some decisions about my data. It’s not like it’s a small mailbox, either—as of this morning, I have filled up 9.3 … Continue reading

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