Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

nothacking @nothacking@infosec.exchange

3/5/2026, 4:38:52 AM

Public

Fun discovery I made ~ a year ago: Intense ultrasound at 25-40 kHz will absolutely ruin audio recordings, especially if it's modulated.

This ultrasound can also be easly made into a beam using multiple transducers for long range interference. Such an array isn't that expensive either: You could put something together for $50-$200.

Anyways, if you're looking for a stealthy way to disrupt Facebook ~~listening devices~~ smart glasses...

If you have a fediverse account, you can quote this note from your own instance. Search https://infosec.exchange/users/nothacking/statuses/116174719038192440 on your instance and quote it. (Note that quoting is not supported in Mastodon.)