My browser kept showing this message when I tried to access JPG image files in one of my website's folders:
"The requested URL was rejected. If you think this is an error, please contact the webmaster. Your support ID is: ..."

The same error occurred on multiple browsers, and rebooting my router did not help. Images in the other website folders displayed without a problem.

The folder path had "/etc/" in the name. After renaming the "etc" folder to a different name, I was then able to access the images in my browser. Apparently some security script on the server was blocking requests to any URLs containing /etc/.
Check your privacy settings - how to check/update your privacy settings on various popular sites
This is news to me.

Windows has for many years had a feature called "alternate data streams" whereby one or more files can in effect be hidden within another file or folder. These alternate data streams aren't regular hidden files and aren't displayed in Windows Explorer. One way of seeing them is to use the "dir" command with the "/r" switch, in a command window.

More details here: Hide sensitive files with Alternate Data Streams.

Why questionable downloads use rar archives - Len Boyette explains that when malware is hidden by means of alternate data streams within WinRar archives, many anti-virus programs are not able to detect it.


via [personal profile] andrewducker
Google Declares War on the Password
"Want an easier way to log into your Gmail account? How about a quick tap on your computer with the ring on your finger? This may be closer than you think. ..."
Yahoo! Mail Makes HTTPS Available - for the time being, users must manually select it in the mail settings.
When you open a file from an archive using 7-Zip, the uncompressed (unzipped) file is stored in a temporary folder on your hard drive.

If you close the file before closing 7-Zip, 7-Zip automatically deletes the temporary folder and the uncompressed file.

However, if you close 7-Zip before closing the file, then the temporary folder and the file do not get automatically deleted. They remain on your hard drive. Even if the file was originally password-protected within the archive, the file can then be opened from the temporary folder, without needing to enter the password. Therefore, if you are using password protection for data security purposes, remember to always close the file before closing 7-Zip.

The location of the temporary folder likely varies depending on one's operating system. On a computer running Win7, the temporary folders are created here:
    C:\Users\[User Name]\AppData\Local\Temp\

The folder names begin with "7z" and end in ".tmp".

When using password protection for data security, it is advisable to choose the "AES-256" encryption method, rather than the "ZipCrypto" method, as the latter can more easily be cracked. However, not all archive programs support AES-256.

For stronger data security, consider TrueCrypt. This page explains how to use it.

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