







Many people may already know that all your devices try to broadcast your previous connections. I expect that many more have no idea that’s happening. There have been articles published about it before, but without specific examples.
Ordinary WiFi can now identify people with near perfect accuracy
Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, researchers can effectively “see” and recognize individuals — even if they are not carrying a device and even if their phone is turned off.

Is your smartphone listening to you?
Creepy or coincidence - when the net reflects real life a little too closely.

7 Useful Tips for Anyone Connecting to Public Wi-Fi
Our public spaces are now awash with wireless internet. Make sure you’re getting the most out of every connection.

Your Phone Notifications Reveal More Than You Realize. Here’s How to Lock Them Down
A recent case shows law enforcement can see incoming Signal messages by searching an iPhone, even after the Signal app has been deleted. Here’s what to know, and how to protect yourself.

Here’s What Your Browser is Telling Everyone About You
Your browser sends a lot of information with each website you visit. That can be used to track you across the internet.

Wi-Fi Aware | Apple Developer Documentation
Securely pair and connect to external devices over peer-to-peer Wi-Fi.

How internet-connected devices can track your data for sale to others | CBC News
A new generation of smart, always-on, internet-connected devices is redefining how companies collect and share user data — both the types of data collected, and who that data is shared with.

How does Apple (privately) find your offline devices?
At Monday’s WWDC conference, Apple announced a cool new feature called “Find My”. Unlike Apple’s “Find my iPhone”, which uses cellular communication and the lost…

IT pro says his parents’ Keurig smart coffee maker sent 1 terabyte of data over their Wi-Fi in 10 days — it saturated an access point on its own, but he says most of the traffic never left the home network
Turning it off and on again seems to have fixed the problem, but its data was not captured.

Privacy Badger
Privacy Badger is a browser extension that stops advertisers and other third-party trackers from secretly tracking where you go and what pages you look at on the web. If an advertiser seems to be tracking you across multiple websites without your permission, Privacy Badger automatically blocks that advertiser from loading any more content in your browser. To the advertiser, it’s like you suddenly disappeared.

We Are Hopelessly Hooked
We check our phones 221 times a day—an average of every 4.3 minutes—according to a UK study. This number actually may be too low, since people tend to underestimate their own mobile usage. In a 2015 Gallup survey, 61 percent of people said they checked their phones less frequently than others they knew. Our transformation into device people has happened with unprecedented suddenness.

An exploration of Wi-Fi Aware for Bitchat (and other ad-hoc networks) - HackMD
Bitchat is an open source peer-to-peer mesh communication network started in the summer of 2025 by Jack Dorsey. It's available on iOS, Android, and MacOS. Others have explored beyond this, with a terminal client and a self-powered ESP32-based mesh relay node. In theory, Bitchat enables cross-platform peer-to-peer messaging even when there's no cellular or Wi-Fi network available. In practice, it's not proven to be reliable in an offline environment. However, I believe it could be, and it's clear that the team agrees and is actively working toward that end.
Your battery status is being used to track you online
Battery status indicators are being used to track devices, say researchers from Princeton University – meaning warnings of privacy exposure have come to pass

Efficient Wi-Fi Phishing Attacks: Would You Fall for That?
For pentesters looking to break into a WPA-2 network, a Wi-Fi phishing attack comes in handy.
This is why I keep showing up everywhere in the Atmosphere. I am not rebuilding myself on every new app, just opening another window into the same network. My identity and connections are already there.
Tomas Latal
Damn this Atmosphere hole runs deep. I now "accidentally" have done imports from LinkedIn to @sifa.id and from Goodreads to @bookhive.buzz And what I really like is that I can see people that I follow on bsky there without any extra effort. E.g. @viet.shy.cat seems to be all over the Atmosphere :)
7/ Check out the details, including a deeper discussion of challenges, a prototype of Bitchat over Wi-Fi Aware, and general notes on cross-platform Wi-Fi Aware implementation 👉 grjte.sh/bitchat-wifi-aware