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Polymath Central

Thoughts and musings of David Greenberg, a polymath

Technology

Xtracycle’s Swoop ASM e-bike brings an automatic transmission to cargo bikes

August 26, 2026 Blogmaster

The Velotric Discover M e-bike we reviewed earlier this year had a feature I found somewhat annoying: It would sporadically block much of the display with an alert telling me…

Technology

IBM’s new Granite 4.2 models ride the wave of interest in local LLMs

August 26, 2026 Blogmaster

IBM has rolled out the newest models in its family of open-weight large language models designed to be downloaded and self-hosted. The newly launched Granite 4.2 comes in 3B, 8B,…

Cybersecurity

OpenAI Bans Russian ChatGPT Accounts Used to Run Influence Operation

August 26, 2026 Blogmaster

OpenAI on Tuesday said it banned a cluster of Russian ChatGPT accounts that used VPNs to bypass access restrictions and run an influence operation, which relied on its artificial intelligence…

Cybersecurity

Claude Opus 4.6 Bypasses Gym Booking Limit, Cancels Other Users’ Reservations in Tests

August 26, 2026 Blogmaster

Aikido Security has published research that recreates the Australian gym-booking incident in a synthetic environment, finding that Claude Opus 4.6, running on the OpenClaw agent harness, exploited a client-side-only booking…

Cybersecurity

Newly SLEEPWALKER Backdoor Waits for One Crafted Packet, Then Runs Its Own Bytecode

August 26, 2026 Blogmaster

An independent malware researcher has documented a previously unreported Windows backdoor, dubbed SLEEPWALKER, that stays inert in memory until a specifically crafted network packet reaches the machine and then runs…

Cybersecurity

INTERPOL Operation Jackal IV Arrests 58, Identifies 263 in Global Cyber Fraud Crackdown

August 26, 2026 Blogmaster

An eight-month INTERPOL operation targeting West African organized crime groups has led to arrests of 58 people and the identification of 263 suspects. “The operation, which brought together 22 countries…

Cybersecurity

Fake Apple Support AI Calls Target Stolen-Device Owners for Passcodes and 2FA Codes

August 26, 2026 Blogmaster

Cybersecurity researchers have disclosed details of a phishing-as-a-service (PhaaS) platform built to strip Apple’s Activation Lock from stolen devices, using rented AI voice agents that call theft victims posing as…

Cybersecurity

Critical Gitea RCE Actively Exploited as Reported Attack Drops Miner-Like Payload

August 26, 2026 Blogmaster

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday warned of active exploitation efforts targeting a recently patched critical security flaw impacting Gitea. The vulnerability in question is CVE-2026-60004…

Technology

Pentagon Fires Chief Editor Of ‘Stars & Stripes’ For Promising To Do Independent Journalism

August 25, 2026 Blogmaster

To say that Donald Trump has been waging an ideological war against the American free press would be an understatement in the extreme. Even attempting to list out the many,…

Technology

The world’s busiest spaceport is about to get a lot quieter, at least for now

August 25, 2026 Blogmaster

SpaceX made Florida’s Space Coast home to the world’s busiest spaceport for a decade, but that will change this year. The company is significantly cutting the number of launches from…

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Polymath Central

Thoughts and musings of David Greenberg, a polymath

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