{"id":309,"date":"2007-03-17T04:25:00","date_gmt":"2007-03-17T08:25:00","guid":{"rendered":"http:\/\/www.kosmo.com\/blogs\/techno\/?p=309"},"modified":"2007-03-17T04:25:00","modified_gmt":"2007-03-17T08:25:00","slug":"sender-address-verification-considered-harmful","status":"publish","type":"post","link":"https:\/\/www.kosmo.com\/blogs\/techno\/?p=309","title":{"rendered":"Sender Address Verification considered harmful"},"content":{"rendered":"<p>Excellent <a href=\"http:\/\/taint.org\/2007\/03\/16\/134743a.html\">post by Justin<\/a> on why SAV isn&#39;t that useful in fighting spam:<\/p>\n<div style=\"margin-left: 40px;\">\n<p>Some view this as a useful anti-spam technique. In my opinion, it\u2019s not.<\/p>\n<p>Spam\/anti-spam is an adversarial \u201cgame\u201d. Whenever you\u2019re considering anti-spam<br \/>\ntechniques, it\u2019s important to bear in mind game theory, and the possible<br \/>\ncountermeasures that spammers will respond with. Before SAV became prevalent,<br \/>\nspam was often sent using entirely fake sender data; hence the initial attractiveness of SAV. Once SAV became worth<br \/>\nevading, the spammers needed to find \u201creal\u201d sender addresses to evade it. And<br \/>\nwhere\u2019s the obvious place to find real addresses? On the list of target addresses<br \/>\nthey\u2019re spamming!<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Excellent post by Justin on why SAV isn&#39;t that useful in fighting spam: Some view this as a useful anti-spam technique. In my opinion, it\u2019s not. Spam\/anti-spam is an adversarial \u201cgame\u201d. Whenever you\u2019re considering anti-spam techniques, it\u2019s important to bear in mind game theory, and the possible countermeasures that spammers will respond with. Before SAV [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,5],"tags":[],"class_list":["post-309","post","type-post","status-publish","format-standard","hentry","category-general","category-spam"],"_links":{"self":[{"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=\/wp\/v2\/posts\/309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=309"}],"version-history":[{"count":0,"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=\/wp\/v2\/posts\/309\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kosmo.com\/blogs\/techno\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}