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DMARC: an imperfect solution that can make a big difference

US Senator Ron Wyden has asked the Department of Homeland Security to implement DMARC. Martijn Grooten looks at what difference this could make for phishing attacks impersonating the US federal governent.
US Senator Ron Wyden has written a letter (pdf) to the Department of Homeland Security, urging the US government to implement DMARC to "ensure hackers cannot send emails that… https://virusbulletin.com/blog/2017/07/dmarc-imperfect-solution-can-make-big-difference/

TorrentLocker spam has DMARC enabled

Use of email authentication technique unlikely to bring any advantage.
Use of email authentication technique unlikely to bring any advantage. Last week, Trend Micro researcher Jon Oliver (who presented a paper on Twitter abuse at VB2014) wrote an… https://virusbulletin.com/blog/2015/03/torrentlocker-spam-has-dmarc-enabled/

VB2014 paper: DMARC - how to use it to improve your email reputation

Terry Zink presents case study in which he describes setting a DMARC policy for Microsoft.
Terry Zink presents case study in which he describes setting a DMARC policy for Microsoft.Over the next few months, we will be sharing VB2014 conference papers as well as video… https://virusbulletin.com/blog/2014/11/paper-dmarc-how-use-it-improve-your-email-reputation/

AOL spam spreads 'NotCompatible' Android trojan

AOL responds by following Yahoo! in setting strict DMARC policy.
AOL responds by following Yahoo! in setting strict DMARC policy. This week, #AOLhacked has become a popular hashtag on Twitter: many AOL users are using it to complain that their… https://virusbulletin.com/blog/2014/04/aol-spam-spreads-notcompatible-android-trojan/

Yahoo's DMARC policy wreaks havoc among mailing lists

Collateral damage in instruction to reject emails with invalid DKIM signatures.
Collateral damage in instruction to reject emails with invalid DKIM signatures. A change in Yahoo's DMARC policy has caused frustration among operators of many mailing lists and… https://virusbulletin.com/blog/2014/04/yahoo-s-dmarc-policy-wreaks-havoc-among-mailing-lists/

At least 99.4% of spam blocked in recent Virus Bulletin test

All solutions on test blocked at least 99.4% of spam, but some struggled with false positive issues; survey also shows few products support DMARC.
All solutions on test blocked at least 99.4% of spam, but some struggled with false positive issues; survey also shows few products support DMARC. The results of the most recent… https://virusbulletin.com/blog/2014/02/least-99-4-spam-blocked-recent-test/

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