The fastest way to reach us is by email. We read every message, though we cannot promise to reply to all of them — tips and corrections go to the top of the pile.
General inquiries, story tips, corrections:
info@quickfixappli.com
If your message contains sensitive information, let us know in the first line and we will reply with an encrypted channel before you send anything further.
Mailing address
QuickFix Security
447 Broadway, 2nd Floor, Suite #1742
New York, NY 10013
United States
Please note: we do not keep regular office hours at this address. It is a mail drop used for legal correspondence and the occasional postcard from readers who prefer paper.
Responsible disclosure
If you believe you have found a security issue affecting this website, please email info@quickfixappli.com with details and steps to reproduce. We will acknowledge within 72 hours, credit you in a post if you would like, and absolutely will not take legal action against good-faith researchers.
Guest posts and partnerships
We accept a small number of guest posts each year from practitioners with original, hands-on experience to share. Pitches that read like AI-generated link bait will not be considered, nor will any request involving paid links. If that does not scare you off, send a short outline and a sample of your previous writing.