Contact
Email, and only email. No contact form, no chat widget, no calendar-booking funnel.
General and new work
A couple of sentences about the system and what's worrying you is plenty for a first message. You'll get a reply within two working days, written by me.
Before you write: what engagements look like.
Reporting a security issue
securityREMOVE@handsonzero.com
A real, monitored mailbox, published in security.txt per RFC 9116. The disclosure policy sets out what I commit to and what I ask of you.
Found something in a client's system? Report it to that client directly. I can't act on their behalf.
Encrypted mail
No PGP key is published yet, so security.txt carries no
Encryption: field. Need an encrypted channel before then? Say
so in a first message and we'll arrange one.
Where this lands
Mail to @handsonzero.com and @handsonzero.nl
reaches the same mailbox. Both domains publish SPF, DKIM and DMARC at
p=reject with strict alignment, so anything claiming to be
from me that doesn't authenticate should be rejected. Worth knowing if you
ever receive an invoice with my name on it.