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The most popular blog posts about security & privacy on Hacker News. 356 posts.
In iOS 26.3, Apple introduced a new privacy feature which limits “precise location” data made available to cellular networks via cell towers. The feature is only available to devices with Apple’s in-house modem introduced in 2025. The announcement1 says https://support.apple.com/en-us/126101 ↩
Reverse engineering reveals how Paint and Photos embed a server-issued GUID into the pixels of locally generated AI images.
That’s right — this little device is what stood between me and the ability to run an even older piece of software that I recently unearthed during an expedition of software archaeology.
Why passkeys are a step back for personal security: examining account lockout risks, platform lock-in, hardware key limits, and fragile recovery flows.
ns2jb is a software-only, tethered jailbreak for the Switch 2. It allows running arbitrary native code as any ordinary sysmodule, and as the built-in fs sysmodule. This lets us run homebrew, reverse engineer and mod Switch 2 games, back up save files off the Switch, and access most of the Switch 2’s peripherals…
How Delve managed to falsely convince hundreds of customers they were compliant and then lied about it when exposed and called out
Security experts have been sounding the alarm for years about the risks of using generic TV boxes that promise unlimited content streaming for a one-time fee, warning that they secretly rent the user’s Internet connection out to strangers. But a groundbreaking new analysis finds these devices also routinely spoof…
The curl project will not accept or otherwise handle any vulnerability reports during the month of July 2026. We call it the curl summer of bliss. curl's submission form on Hackerone will be paused starting July 1, 2026. Summer of bliss starts: July 1, 2026. 00:00 CEST Submissions resume: August 3 2026. 09:00 CEST The…
Since about a week, Cloudflare Turnstile (their "Verify you're human" device verification) has been looping indefinitely in my webkit-gtk based browser . Preventing access to quite few websites ( previously , but it even went worse lately). Turns out it's because Cloudflare wants to have a fingerprint of your device…
OpenAI's ad collector at bzr.openai.com sets a cookie called __obi, scoped to .openai.com. The value is while you are on ChatGPT and tied to your ChatGPT account. __obi is then sent to OpenAI from ordinary websites you visit. Any company that buys ads on ChatGPT installs
Google today reached the final milestone in a browser-extension transition that has been years in the making, all remaining Manifest V2 extensions were removed from the Chrome Web Store.
The QuadRF (pictured above) a phased-array radio built around a Raspberry Pi 5 and an FPGA board with picosecond-level timing. It does advanced signal processing and beamforming. It can see WiFi through walls and track drones in flight. If the open source community can come up with something like this, just imagine…
Now open it on your phone or some other device and your nickname will be different and just as consistent.
Civil rights activist Dr. Patrick Breyer warns of an unprecedented "double-attack" on secure messaging ahead of critical Friday and Monday EU meetings. Ahead of a highly critical weekend for digital civil rights in Europe, former Member of the European Parliament Dr. Patrick Breyer is sounding th
On 15 September 2026, Carter Leffen contacted me to request validation of a break of the German Army Enigma message MVUEH of 10 July 1941. The message, which was sent by a radio station with the tactical callsign 2ny, was received by the radio station of the SS-Totenkopf Quartiermeister, Ib. Ib received the message at…
The last document from the Snowden archive was published on 29 May 2019. The Guardian stopped publishing documents in February 2014, Der Spiegel in January 2015, and The New York Times and ProPublica in August 2015. After that, only The Intercept was still publishing documents, with only a few exceptions, until it…
Back in March, I wrote about Bitwarden doubling their Premium price — and specifically how they did it. Buried in a feature announcement. Priced in fake...
A series of unfortunate events.
Meta fixed the bug that let anyone trick its Meta AI chatbot into resetting the password on Instagram accounts that didn't have two-factor authentication.
yes, as in singular one. Back in April 2026 Anthropic caused a lot of media noise when they concluded that their new AI model Mythos is dangerously good at finding security flaws in source code. Apparently Mythos was so good at this that Anthropic would not release this model to the public yet but instead … Continue…
Abusing an unauthenticated Bluetooth protocol to turn a PC speaker into a Rubber Ducky.
Bug Bounty Hunter & Researcher
How an expired nameserver let me take over e164.arpa zones for multiple territories, and why I probably should have checked my logs sooner.
The controversial mass surveillance of private messages in Europe is coming to an end. After the European Parliament had already rejected the indiscriminate and blanket Chat Control by US tech companies on 13 March, conservative forces attempted a democratically highly questionable maneuver yesterda
A post called Passkeys are a trap. Do not use them. has been doing the rounds over the last few days, making it pretty high on Hacker News, and I've had it sent to me many times with an 'is this true?' kind of vibe. It's written for
How I tricked Claude into leaking your deepest, darkest secrets
I wrote to Flock’s privacy contact to opt out of their …
The official White House Android app has a cookie/paywall bypass injector, tracks your GPS every 4.5 minutes, and loads JavaScript from some guy's GitHub Pages.
We're in the era of trillion-dollar companies, but that doesn't mean you should leave $5 on the table!
