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the sender hides a hidden stream inside some public available carrier files (password + carrier files + carrier order are the secret key) the receiver unhides the hidden stream knowing the secret key; The advantage of steganography, over cryptography alone, is that messages do not attract attention to themselves. Plainly visible encrypted ...
In DOS systems, file directory entries include a Hidden file attribute which is manipulated using the attrib command. Using the command line command dir /ah displays the files with the Hidden attribute. In addition, there is a System file attribute that can be set on a file, which also causes the file to be hidden in directory listings.
Anti-virus protection software is disabled without your knowledge; Your mouse is randomly opening software or files without you directing it; Any of these scenarios can be scary if they happen to you.
One of the clues that a computer is infected is the mis-capitalization of the well-known message "Bad command or file name" as "Bad Command or file name". The Jerusalem virus is unique among other viruses of the time, as it is a logic bomb , set to go off on Friday the 13th on all years but 1987 (making its first activation date 13 May 1988). [ 3 ]
Change your password. From a desktop or mobile web browser: Sign in to the AOL Account security page. Click Change password. Enter a new password. Click Continue. From most AOL mobile apps: Tap the Menu icon. Tap Manage Accounts. Tap Account info. Tap Security settings. Enter your security code. Tap Change password. Enter a new password.
Typing recover at the DOS command-line invoked the program file RECOVER.COM or RECOVER.EXE (depending on the DOS version). recover proceeded under the assumption that all directory information included on a disk or disk partition was hopelessly corrupted, but that the FAT and non-directory areas might still contain useful information (though there might be additional bad disk sectors not ...
Keep a valid mobile phone number or email address on your account in case you ever lose your password or run into a prompt to verify your account after signing in. We'll also include your recovery email address when sending a notification of changes made to your account. Add a mobile number or email address
The Worst Passwords List is an annual list of the 25 most common passwords from each year as produced by internet security firm SplashData. [3] Since 2011, the firm has published the list based on data examined from millions of passwords leaked in data breaches, mostly in North America and Western Europe, over each year.