VVũ Nhật LâmOct 13 · 7 min readMantax Otax: One APK, Three Roles — Encryption, Espionage and Victim HarassmentSummary Mantax Otax is Android malware developed by an Indonesian group targeting Indonesian users. A single APK plays three roles: encrypting files for ransom, comprehensive espionage (lock-screen PIblog.fiscybersec.com
VVijay ChoudharyOct 10 · 25 min readWhere Do 50 Milliseconds Go? A Latency Budget for Live Odds PipelinesFifty milliseconds is shorter than a blink. It is about three frames on a 60 Hz screen. It is also, if you believe the marketing pages of live data providers, the speed at which a goal can travel from1Abettechmagnetics.hashnode.dev
VVijay ChoudharyOct 5 · 22 min readSportsbooks vs Trading Desks vs Media: How Orbistats' Solution Pages Map to Real ArchitecturesBrowse the Solutions section of Orbistats and you will notice something that looks like marketing but is actually engineering. Sportsbooks, trading desks and media publishers each get their own page, bettechmagnetics.hashnode.dev
VVũ Nhật LâmSep 16 · 19 min readTerminalFix: Change One Dialog Box, and the Payload Jumps From an Infostealer to a Tunnel Into the NetworkSummary Classic ClickFix directs victims to the Windows Run dialog. TerminalFix directs them to Windows Terminal or PowerShell. It sounds like a trivial detail. But the Run dialog accepts a single linblog.fiscybersec.com
CcircuitrocksAug 27 · 3 min readAn ESP32-P4 Runs Doom While Claude Sonnet Fumbles the ControlsThe early version of this rig kept walking into walls. Seven depth rays fanned out across the player's field of view, and a doorway narrow enough to slip between two of them simply did not exist as facircuitrocks.hashnode.dev
PPowerduckAug 26 · 6 min readHow to test WebSocket APIs: handshakes, auth, reconnection, and repeatable scenariosREST tools train you to think in request-response pairs. WebSocket APIs are conversations: after one HTTP upgrade handshake, either side can send a frame at any time, messages have types and sequence blogs.powerduck.com
KKunal GuptaAug 15 · 5 min readThree Restaurants, One Kitchen: What Broke When it ScaledContinuation of One Socket, a Thousand Waiters, turns out the trick works great, right up until you run more than one copy of it. Worked perfectly with one pod. The moment we scaled to three, jobs sta1kunalforked.hashnode.dev
KKunal GuptaAug 13 · 3 min readOne Socket, a Thousand WaitersBit of a continuation from my last post on building MCP tools from OpenAPI the WebSocket/session-id trick I mentioned there for handling callbacks and Prefect jobs deserved its own writeup, so here it1kunalforked.hashnode.dev
CChris VestersAug 9 · 5 min readFirst WebSocket & Stomp ExperienceFor a project where I want to be able to offer more interactivity and concurrent modifications, I decided to use a WebSocket. Since my backend is written in Spring, after some research, I decided to u1cvesters.hashnode.dev
KKrishnam MurarkaAug 5 · 4 min readWe Killed 400 Clients' 5-Second Polling Loop and Cut Server Load by 90%Originally published on the Edilec blog: dev.to/krishnamm/we-killed-400-clients-5-second-polling-loop-and-cut-server-load-by-90-1fdf Our status dashboard feature started life as the simplest thing thaedilec-engineering.hashnode.dev