Articles tagged 'security'

I only just discovered Domain-based Message Authentication, Reporting & Conformance (DMARC) today, as I was writing up some notes for an article on setting up email for a new domain. While I was writing the section on DKIM, I got to thinking, That's all well and good, but how do I advertise the fact that all my email sources are DKIM-signing messages, and that anything which isn't signed is probably spam? It turns out that DMARC is the answer to that question — and more — and it's widely deployed. In addition to allowing you to state that you sign everything, you can also opt in to getting reports from mail service providers with details on what email is getting dropped. Read more…

The Internet is full of Bad People Who Want To Steal Your Stuff. Well, no, not really. The Internet is full of good people (so long as you don’t read the comments), but it does give the bad people access to an unprecedented amount of computing power, and a large audience with which to play. When you’ve got enough computing power, and enough bandwidth, it’s no big deal to guess somebody’s password by just trying out every possible combination (called a "brute force" attack). Read more…