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Wrenfield

Session integrity
articles

Field notes on device signals, hijacked sessions, and the cost of every risk decision.

All38 Device signals Bot defense Payments
Concentric amber signal rings in the dark — photo by asim alnamat on Pexels Editor’s pick
6 Feb 20269 min read

Nine session-hijack detection stacks, benchmarked

We replayed 4,180 hijacked sessions through nine stacks and scored signal quality against false-decline cost.

Session integrity Benchmarks
Thanh Xuan Nguyen Ly on Pexels by Marta Okonjo · Detection Research

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City street grid at night — photo by Denys Mikhalevych on Pexels
8 Dec 20256 min

How proximity drift turns noisy GPS into a usable fraud signal

Device signals
Heavy steel vault door — photo by wutthichai charoenburi on Pexels
24 Nov 20257 min

Building a vault for modern banking without bolting the door shut

Anti-fraud
Patch panel network cabling — photo by Brett Sayles on Pexels
30 Oct 20255 min

Closing the identity gaps that device intelligence quietly exposes

Authentication
Low-light laptop keyboard — photo by Szabó Viktor on Pexels
17 Oct 20258 min

Five ways to stop password-reset abuse before the email goes out

Account recovery