Everything About: Frankchu

frank chu

Nov 2

11 of 11 JS cost gaps overlap: I re-ran the tables

#discuss #javascript #webdev #ai

6 min read

frank chu

Nov 2

61% more Postgres backports: I recounted the delay

#programming #postgres #database #ai

4 min read

frank chu

Nov 2

$173M ads, one AI rebrand: OpenAI data centers

#discuss #ai #openai #datacenters

3 min read

frank chu

Nov 2

0 of 17 third-party scripts had integrity checks

#discuss #programming #security #javascript

3 min read

frank chu

Nov 2

15 of 15 hidden instructions survived every PDF extractor

#discuss #programming #security #pdf

3 min read

frank chu

Nov 1

95% replaced: Binance reopens after $6.3B heist

#discuss #programming #cryptocurrency #security

1

4 min read

frank chu

Nov 1

2 phrases run VOLTA's fallback, tested on 24 replies

#discuss #ai #security #malware

4 min read

frank chu

Nov 1

9.8 TCP flaw, 2-line fix: I audited my own kernel

#discuss #programming #linux #security

4 min read

frank chu

Nov 1

xAI's 35 turbines just lost their 'mobile' loophole

#discuss #ai #datacenter #energy

3 min read

frank chu

Oct 31

50% of CPU time was memory stalls, so I re-ran the test

#discuss #programming #database #performance

3 min read

frank chu

Oct 31

510 bytes boot a neural network that dreams dmesg

#programming #machinelearning #llm #ai

4 min read

frank chu

Oct 31

OpenAI cut its funding target by a third. I did the shortfall math.

#news #funding #openai #startup

3 min read

frank chu

Oct 31

Northflank is the ninth AI platform breached in October. I read its status page like a timeline.

#cloud #cybersecurity #infosec #security

4 min read

frank chu

Oct 31

A public ChatGPT share could run code as you. I checked the two parts that made it possible.

#chatgpt #javascript #openai #security

5 min read

frank chu

Oct 31

Applebee's shipped its database password inside its app. Anyone with the APK was an admin.

#bug #security #android #cybersecurity

4 min read

frank chu

Oct 30

Azure's cross-tenant hole got four fixes. The fourth fix reopened the third hole.

#azure #security #cloud #cybersecurity

4 min read

frank chu

Oct 30

A working Nintendo lives in 1GB of Qwen weights. I ran it and counted the nonzero ones.

#showdev #computerscience #llm #ai

4 min read

frank chu

Oct 30

Anthropic is about to be "junk"-rated with $112B in cash. I did the Project North Star math.

#discuss #ai #startup #news

4 min read

frank chu

Oct 30

Binance lost $6.3B in about 20 minutes. I did the freeze math, and half the money is still moving.

#blockchain #cryptocurrency #crypto #security

5 min read

frank chu

Oct 30

The Claude Code backdoor's macOS bug broke its own SSH step. I re-ran the check.

#programming #security #ai #cybersecurity

6 min read

frank chu

Oct 30

The Nvidia spy story, split in two: a verified $4.8B equipment trail and an unverified allegation

#news #cybersecurity #security

4 min read

frank chu

Oct 29

25 firewalls rooted from 19,000 scanned. I did the funnel math.

#network #infosec #cybersecurity #security

3 min read

frank chu

Oct 29

Mistral's 1T model is 'open.' I priced what open actually costs.

#discuss #ai #llm #machinelearning

4 min read

frank chu

Oct 29

DoorDash's $17B Instacart deal is priced like a two-year wait. I did the spread math.

#discuss #startup #news

3 min read

frank chu

Oct 29

I tested the new fast floor-division trick on 2,000,000 inputs. It's correct — and no faster here.

#algorithms #c #programming #performance

3 min read

frank chu

Oct 29

Stack Overflow now gets fewer than 1,000 questions a month. I counted via the API.

#discuss #softwaredevelopment #news #programming

2

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3 min read

frank chu

Oct 29

Amazon just bet $200 that your phone can't replace a clock or a photo frame

#news #hardware #iot

4 min read

frank chu

Oct 29

The DOE's $5B nuclear loan isn't new power. It's cheaper financing for power already sold.

#news #infrastructure

4 min read

frank chu

Oct 28

Apple's git still trusts the compromised eMudhra certs. I ran the same checks on my machine.

#programming #security #opensource #cybersecurity

4 min read

frank chu

Oct 28

MuPDF's AES-256 key had 9 bits of entropy. I reproduced it in 8.7 milliseconds.

#cybersecurity #programming #security

1

4 min read

frank chu

Oct 28

Tailscale SSH checked paths as you and dialed them as root. I read all four bulletins.

#cybersecurity #infosec #security

5 min read

frank chu

Oct 28

Someone built git blame for the US Code. I checked its numbers — 361 of 365 reconcile.

#showdev #programming #opensource #discuss

4 min read

frank chu

Oct 28

A Meta AI director left to rebuild Office. I checked if Ndoc is real.

#ai #productivity #startup

4 min read

frank chu

Oct 27

Ghostty 1.4 says scrollback compression saves 70-90%. I measured five kinds of text.

#performance #software #terminal

3 min read

frank chu

Oct 27

GoAhead's DH bug turns a 2048-bit prime into 255. I counted the 8 secrets left.

#c #cybersecurity #iot #security

4 min read

frank chu

Oct 27

Genie 4's real upgrade isn't the graphics. It's the second model watching them.

#ai #deeplearning #google #machinelearning

4 min read

frank chu

Oct 27

GPT-6.1 Terra costs half as much. I checked which halves OpenAI meant.

#ai #api #llm #openai

4 min read

frank chu

Oct 27

Python's JIT is being removed. I checked — my Python never had one.

#news #performance #python

1

4 min read

frank chu

Oct 26

Cohere caught Qwen3.8 trying to upload a probe file to Beijing. I ran the numbers in its report.

#agents #ai #llm #security

5 min read

frank chu

Oct 26

Cloudflare's GLM-5.3 leaked other users' prompts through its KV cache. I rebuilt the bug in 30 lines.

#cybersecurity #llm #python #security

5 min read

frank chu

Oct 26

SpaceX's $40B GPU deal is a lease, not a check. I did the payment math.

#hardware #infrastructure #startup

4 min read

frank chu

Oct 26

vLLM's Nemotron processor set one Pillow global to None. I measured what that global was holding back.

#cybersecurity #python #security

4 min read

frank chu

Oct 26

I parsed Anthropic's S-1 myself. The $80.7B loss is not the story.

#ai #claude #startup

4 min read

frank chu

Oct 26

I built Karpathy's LLM Wiki as a product — the hard part was stopping the LLM from writing

#showdev #ai #llm #tools

7 min read

frank chu

Oct 25

Wiz counted 13,500 Gheist branches today. I rebuilt its masking bypass in 15 lines and scanned my own repos.

#cybersecurity #github #infosec #security

4 min read

frank chu

Oct 25

Farol scores your PR's merge risk from the call graph. I fed it four PRs — and one invisible contract break.

#showdev #cli #opensource #softwaredevelopment

5 min read

frank chu

Oct 25

Reylo types .sql files by asking your database. I tried to fool it five ways.

#backend #database #sql #typescript

5 min read

frank chu

Oct 25

Goose claims a 29-byte record and 3.3x over C++. I measured both.

#computerscience #cpp #performance #programming

5 min read

frank chu

Oct 24

OpenAI shipped a php2shell checker. I ran it against 65 sites. All 65 said UNKNOWN.

#node #openai #php #security

1

4 min read

frank chu

Oct 24

HatchZip promises to extract an 839 MB archive in 839 MB of disk. I measured the blocks.

#github #opensource #performance #software

5 min read

frank chu

Oct 24

Astral wired ty into uv. I ran uv check on a project with four deliberate errors.

#programming #python #softwaredevelopment #tools

5 min read

frank chu

Oct 24

I scanned my machine for the Brotli RCE. Three stacks were exposed — and the patched one still reports the vulnerable version.

#cybersecurity #node #python #security

7 min read

frank chu

Oct 23

I generated 1,000,000 UUIDv7s. Python's are perfectly monotonic — in one process, with a behaving clock.

#programming #python #softwaredevelopment

1

6 min read

frank chu

Oct 23

I measured softmax's precision cliff. In fp32, cross-entropy returns exactly zero at margin 16.

#ai #computerscience #machinelearning #performance

7 min read

frank chu

Oct 23

Quad9 is leaving France on Nov 24. I probed its DoH — it's the only resolver here that requires HTTP/2 or nothing.

#discuss #security #networking #privacy

4 min read

frank chu

Oct 23

OpenSSL 4.1.0 shipped today. I built it and measured ML-KEM, ML-DSA, and DTLS 1.3.

#networking #opensource #performance #security

1

4 min read

frank chu

Oct 22

eMudhra quit the CA business today. I checked your trust store — its roots are still in it.

#cybersecurity #infosec #security

4 min read

frank chu

Oct 22

I built OpenShell's Z3 policy prover and ran 29 checks. It caught everything except the metadata address.

#agents #cli #opensource #security

5 min read

frank chu

Oct 22

Python 3.15's lazy imports cut my test CLI from 164 ms to 28 ms. The cost didn't disappear — it moved.

#cli #performance #python

4 min read

frank chu

Oct 22

I built FoxIO's 54 KB HTTP/3 accordion by hand. aioquic's decoder unfolded it to 200 MB.

#cybersecurity #networking #python #security

5 min read

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