Steganography has gained a significant amount of press over the past several years when the technique hit the press as a possible method that many of the terrorists involved with the 9/11 attacks used to plan the operation. Similar to the use of encryption, steganography techniques have become one of the basic methods that organizations …
A MySQL password can be reset in 5 easy steps: Stop the mysqld daemon process. Start the mysqld daemon process with the –skip-grant-tables option. Start the mysql client with the -u root option. Execute the UPDATE mysql.user SET Password=PASSWORD(‘password’) WHERE User=’root’; Execute the FLUSH PRIVILEGES; command. These steps reset the password for the “root” account …
Many businesses and government institutions use a content filtering program such as Websense to keep employees from visiting certain websites while at work. These programs can either prohibit the use of certain websites or monitor all of the sites that employees visit while in the office. Websense blocks several website categories: adult material, entertainment, drugs, …
A browser cookie is a small piece of information sent by a web server to a web browser to be stored for future use. The data in the browser cookie will be sent back to the web server whenever the browser reconnects to the web site. Cookies are commonly used to store user preference information, …
PKZip utilizes a proprietary stream cipher that is vulnerable to a known plaintext attack, as Eli Biham and Paul C. Kocher describes in A Known Plaintext Attack on the PKZIP Stream Cipher. In ZIP Attacks with Reduced Known-Plaintext, Michael Stay describes an improved known plaintext attack that works against files that non-PKZip zip programs such …
A buffer overflow occurs when a computer application attempts to assign data to a data structure past the point that the structure is designed to store information. In the classic case, a buffer is a sequential memory section that is assigned to contain information. The type of information can vary from an array of integers …
Browser hijackers are malicious programs that redirect computer users to websites that the hacker wants and deploy the computer malware. The hijacker may change a computer’s default homepage or redirect computer users trying to visit legitimate websites such as their bank or Google to a maliciously crafted copy of the site to deploy computer malware …
LinkSys is the division of the Cisco Company which manufactures some of the most widely used network routers in the world. The WRT54G, WRT160N, and WRT310N series are the most popular with the WRT54G being the first model deployed that supported third-party firmware. The current generation of LinkSys routers support the draft 802.11N wireless standard …
For many computer users privacy is important. If you use a computer for searching the web, there may be times when you prefer to not leave a digital trail of the sites you visited. For those looking to delete their search history, you should know it is extremely easy, here are some tips. Deleting Your …
LoJack refers to a GPS dependent tracking device that allows users to locate devices or vehicles that have been stolen. It is available in both a software version for computers and a hardware version for vehicles and communicates with GPS satellites to show a user where his/her stolen item currently is. LoJack can be activated …