Traffic Issues
VPNs were developed initially to deal with security issues of transmitting clear text data across a network. Clear text data is information that can examined and understood by any person, including the source, destination, and anyone in between. Examples of applications that send traffic in a clear text format are Telnet, file transfers via FTP or TFTP, e-mail using the Post Office Protocol (POP) or Simple Mail Transfer Protocol (SMTP), and many others. Unethical individuals, such as hackers, can take advantage of applications that send clear text data to execute the following types of attacks:
Eavesdropping
Masquerading
Man-in-the-middle
Each type of attack exposes your data and company assets to various risks. The following three ...
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