#email-security on Hacker News

3 stories tagged email-security, newest first.

Screenshot of dmarcchecker.app: Cracking a 512-bit DKIM key for less than $8 in the cloud

Cracking a 512-bit DKIM key for less than $8 in the cloud (dmarcchecker.app)

769 points by awulf 1 year ago | 370 comments

An article describing how the authors factored a 512-bit RSA DKIM public key using cloud computing for under $8 and tested forged email signatures against major providers.

dkim rsa email-security cryptography

Screenshot of ianspence.com: GitHub notification emails used to send malware

GitHub notification emails used to send malware (ianspence.com)

423 points by crtasm 2 years ago | 168 comments

Blog post describing how GitHub notification emails were abused to deliver malware to developers.

github malware phishing email-security

Screenshot of github.com: Understanding SPF, DKIM, and DMARC: A Simple Guide

Understanding SPF, DKIM, and DMARC: A Simple Guide (github.com)

394 points by miles 2 years ago | 89 comments

A GitHub repository README offering a simple guide explaining the SPF, DKIM, and DMARC email authentication standards and how they work.

email-security spf dkim dmarc

#email-security on Hacker News

Cracking a 512-bit DKIM key for less than $8 in the cloud(dmarcchecker.app)

GitHub notification emails used to send malware(ianspence.com)

Understanding SPF, DKIM, and DMARC: A Simple Guide(github.com)

Cracking a 512-bit DKIM key for less than $8 in the cloud (dmarcchecker.app)

GitHub notification emails used to send malware (ianspence.com)

Understanding SPF, DKIM, and DMARC: A Simple Guide (github.com)