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1). 5 Security Considerations When Coding 1. Input Checking Always check user input to be sure that it is what you expected. Make sure it doesn’t contain characters or other data which may be treated in a special way by your program or any programs called by your program.This often involves checking for characters such as quotes, and checking for unusual input characters such ... 2). Google: Friend or Foe? Don’t get me wrong, almost all of us love Google to death. It has single-handedly changed the direction of this entire industry to something that is accessible for everyone. However, while Google is the darling poster child of Wall Street and the general public, there lurks a danger of abuse. We will cover this in a bit, but first let’s look at a f... 3). On Denial of Service Attacks On Denial of Service Attacks 4). Public-Key SSH Login SSH is a popular system allowing a remote shell (command interpreter) to be used over a secure connection. By secure, here, I mean that the connection is encrypted, authenticated and integrity checked. The encryption prevents attackers reading the contents of the data being transmitted, the authentication allows both the client and the server to be... 5). Secure E-Mail With Google GMail This is something I’ve set up myself, recently, to send mail through Gmail without having the unencrypted e-mail stored on their servers.To achieve this, you’ll need a Google GMail account, PGP or GnuPG, Mozilla Thunderbird, and the Enigmail extension. First, set your Gmail account to allow POP3 access. This can be set in your mail set... 6). Sending Passwords By Email It amazes me how many sites allow you to register, and then send you an e-mail to your registered address containing your password in plain-text. There is never a warning stating that the site will email the password you use, for all to see. Sending passwords by e-mail works when you forget a password. The site changes it and e-mails y...