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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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81

Surge In Spam Threats: Botnets Challenge Email Defenses

Everybody's seen it by now. Spam is up like gangbusters in the last few months. And not just in volume; a lot more of it is getting through filtering mechanisms that had previously been pretty reliable. It's an aggravating and depressing situation. A number of factors have contributed to the situation, and what they all have in common, unfortunately, is that spammers are getting much more sophisticated. . Botnets have gotten so sophisticated that they're almost impossible to shut down. This surge of spam is, perhaps, a show of strength, as well as the botmasters exercising the fruits of their efforts developing an underground network. How big is the surge? Postini, the largest hosted secure e-mail provider out there, handling over 1 billion messages a day, ought to know, and know in real time. The company says spam volume is up 120 percent over the last year, but 59 percent in the last two months. That's in line with numbers I've heard bandied about elsewhere, and it's a huge rate of increase. The link for this article located at eWeek is no longer available. . Botnets have gotten so sophisticated that they're almost impossible to shut down. This surge of spam. everybody's, gangbusters, months. . LinuxSecurity.com Team

Calendar 2 Nov 07, 2006 User Avatar LinuxSecurity.com Team Privacy
77

Spammers Manipulate Microsoft SPF For Malicious Email Tactics

Spammers seem to be always a notch ahead than all the efforts against their malicious intentions. According to a recent study by MX Logic Inc., a provider of email defense solutions for corporates, . . .. Spammers seem to be always a notch ahead than all the efforts against their malicious intentions. According to a recent study by MX Logic Inc., a provider of email defense solutions for corporates, spammers have now begun to use Microsoft's latest arsenal against spam, the Sender Policy Framework (SPF), to give their mail a garb of legitimacy. The SPF is an email authentication technology recently introduced by Microsoft to help stop fraudulent email. In its preliminary study, MX Logic found that some spammers have embraced SPF in the hope that their unsolicited email messages will be viewed as more legitimate because the messages have an SPF email authentication record associated with them. In a sample of more than 400,000 unique spam email messages that passed through the MX Logic Threat Center from Aug. 29 through Sept. 3, 16 percent had published SPF records. The link for this article located at CXOtoday Staff is no longer available. . Spammers cleverly exploit Microsoft’s Sender Policy Framework (SPF) to mask their fraudulent activities, deceiving filtering systems and users alike. email authentication, spam tactics, Microsoft SPF, email scams, email protection. . LinuxSecurity.com Team

Calendar 2 Sep 10, 2004 User Avatar LinuxSecurity.com Team Server Security
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/main-polls/150-what-got-you-started-with-linux?task=poll.vote&format=json
150
radio
0
[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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