A major drift throughout 2008 that deepened on the third quarter is spammers’ raised use of cloaking techniques to mask their poor reputation behind someone else’s good reputation. Spammers are finding new ways to send messages using valid or known mail servers, mainly webmail accounts, which have a reputation as a legitimate email source, instead of sending email from a known spam IP address or - more commonly - from an infected bot server. Spammers have been forced to adopt these techniques due to the constant improvement in filtering tactics which are used to spoil them.

These anti-spam techniques include:

· More intolerant implementation of filtering policies by service providers,

· Better adoption by service suppliers and enterprises of certification standards such as DKIM and SPF

· A lot of far-flung use of reputation services of process that ascertain senders’ reputation at the connection level before allowing an email connection to be pioneered.

These email blocking tactics make it practically more difficult for spammers to penetrate their messages into organizations, and has forced them to come up with more creative infiltration techniques, including hijacking good report to disguise their own poor reputation.

There are various formulas that spammers use to hijack good reputation so as to make use of it to deliver their casteless mail:

· Spammers sign up for thousands of free email accounts with the help of compromised CAPTCHAs. CAPTCHAs (abbreviated for Completely Automated Public Turing test to tell Computers and Humans Apart) are word images used to ensure that human beings are filling out registration forms, as contrary to a machine. Algorithmic rules to break CAPTCHAs are promptly accessible to purchase for unlawful use, enabling spammers to render a nearly limitless supply of free email accounts by which to send their messages, without intervention.

· Systematically to get an access to legitimate email accounts without registering them themselves, widespread phishing attacks can persuade enough unwary users to provide their legitimate credentials to criminals. The far-reaching eruptions of this sort to the student genre at various universities, which were described in the second quarter 2008 trend report.

· Spammers frequently use legalized hosting sites to host their illicit content. They can also create many redirection pages on these internet sites using compromised CAPTCHAs. Sites put in this clumsy position recently include: live.com, tripod.com, and photoshosting.com.