Zero-width characters can be used to covertly watermark text and to figure out who copied text from a page and pasted it somewhere else. Server software can encode a hidden number between every few words, which corresponds to a server log entry with your username (if logged in), IP address, browser fingerprint, etc. I wrote more about this here:
I think the best solution to this type of problem would be a clipboard utility that warns you when you copy text which contains hidden characters, homoglyps, rarely used whitespace characters, etc.
The ECASH act is so far my favorite initiative for private online payments. A government-issued open-source anonymous digital dollar, functional both online and offline, no blockchain involved, no transaction fees. I hope they can make it work technically. And I hope Americans support this. It would also pave the way for other countries.
The ability to make large anonymous digital transactions do make corruption and tax evasion easier to get away with. As for sanctions, I imagine they can mostly be enforced by looking at the flow of goods. The money transfers can't be traced, but the weapon shipments can be.
> - With the exception of e/OS, all of the handset manufacturers examined collect a list of all the apps installed on a handset.
/e/OS is no exception. I looked at the requests made by its "Apps" app. Every time it checks for updates, it tells the server what applications you have installed. These requests are made with a User-Agent header revealing your device model, build ID and Android version. Installed languages are also sent via the Accept-Language header. And there is no option to disable update checks; the closest you can get is to set the interval to monthly.
Contrast that with F-Droid, which downloads the package index in advance (like apt does), so it doesn't need to send the server a list of installed apps in order to check for updates.
It actually is effective - at least it was a few years ago. See these tests:
https://www.johnplummer.com/javascript/email-obfuscation-wor...
https://web.archive.org/web/20160304042853/http://techblog.t...