a notebook on digital identity, telecom trust, and internet standards.
I'm Chris Wendt — I came up through real-time communications, from audio DSP, media streaming and codecs, and telecom protocols to the cryptographic trust frameworks for digital identity I work on now.§
Recent entries
-
DNO+: making DNO additive
The DNO library entry describes Do Not Originate as it operates today — a default-deny mechanism on calling-number provenance, structured into two tiers. Tier 1 covers numbers that structurally cannot originate (invalid, unallocated, unassi…
Recent dispatches
-
Regulatory Watch — Week ending June 26, 2026
The comment deadline on the Enhancing Know-Your-Customer Requirements FNPRM landed Thursday, and the entire identity-and-robocall ecosystem filed at once — banks, carriers, identity vendors, competitive providers, domestic-violence coalitio…
-
Regulatory Watch — Week ending June 19, 2026
The week’s most useful filing came from a vendor that took no position on the question everyone else is fighting about. While the Enhancing Know-Your-Customer docket filled with consumers arguing about whether originating providers sh…
-
Regulatory Watch — Week ending June 12, 2026
A week ago the numbering NPRM was a footnote — three early comments waiting on a deadline. On Monday the deadline arrived and the proceeding became the whole front page. More than thirty comments landed in the WC 26-49 cluster (cross-listed…
-
Regulatory Watch — Week ending June 5, 2026
The June 2 comment deadline on the onshoring NPRM did what deadlines do: it emptied the industry’s drawers all at once. Thirty-four comments landed in the CG 26-52 cluster, and the trade associations arrived in close formation — CTIA,…
-
Regulatory Watch — Week ending May 29, 2026
Memorial Day shortened the week, but Tuesday more than made up for it. The Consumer and Governmental Affairs Bureau started the KYUP comment clock with DA‑26‑523 at exactly the same hour Public Safety pushed an updated Covered List out the …
Recent field notes
-
Turing's forgotten voice scrambler
Hackaday points to a Popular Mechanics piece on Delilah, the portable speech-encryption system Alan Turing built late in WWII and then more or less vanished from the record. It was, in many ways, an early stab at digital voice encryption — …
-
Branded Calling goes live on Telnyx
Telnyx has flipped on Branded Calling as a generally available feature: outbound calls can now carry a verified business name, logo, and call reason, with the pitch that this lifts answer rates on US calls to T-Mobile and Verizon. It’…
-
A German court treats Google's AI as its agent
Simon Willison flags Bruce Schneier on a recent German ruling that Google can be held liable for errors its AI overviews introduce. Schneier’s framing is the part worth keeping: “AI agents are agents of the person or organizatio…
-
The service desk is still the soft spot
A Specops-sponsored piece on BleepingComputer walks through why social-engineering attacks against the IT service desk keep working: the help desk is the designated human override for identity verification, and password resets and account-r…
-
Pindrop finds AI text detectors carry demographic bias
Pindrop’s research team tested 16 AI-text-detection systems against a large, demographically labeled corpus and found the bias is “real, model-specific, and most dangerous where attributes intersect.” The work is headed to…