Author Archive

How often do sysadmins patch their systems?

May 13th, 2018
How often do sysadmins patch their systems?

Censys.io datasets provide a rich realm to analyze the Internet and find warts and pimples that normally one cannot see.  I recently pulled down the IPv4 dataset for March 2018 and wanted to see how often people patch their systems.  I focused on nginx – which is an open source HTTP and reverse proxy server,

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How secure is your home router?

April 25th, 2018
How secure is your home router?

Censys.io datasets provide a rich realm to analyze the Internet and find warts and pimples that normally one cannot see.  I recently pulled down the IPv4 dataset for February 2018 and wanted to see which telnet banners are the most popular on the Internet these days.  In general, telnet should never be open to the

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The Strange Case of the Passover Homograph Attack

April 9th, 2018
The Strange Case of the Passover Homograph Attack

Sometimes, things are not as they appear to be.  Recently, a WhatsApp message appeared with the text of: *Rolex is giving away 3000 Free Set of Watches* to celebrate its 93rd anniversary. Get your free Watch at: http://www.rolẹx.com/  Looking closely at the letter “e” in Rolex I saw a small dot under the letter e. 

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Bandwidth for Groundbreaking Cancer Research

January 10th, 2018
Bandwidth for Groundbreaking Cancer Research

When the Sheba Cancer Research Center (SCRC) wanted to transfer 300 terabytes of data from the US National Cancer Institute Center for Cancer Genomics (CCG) Genomic Data Commons (GDC) in Chicago to local storage to advance their research, they thought the process would be relatively straightforward. They acquired resources needed in Sheba’s data center, opened

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