• Home
  • About 404TS
  • Contact

404 Tech Support

Where IT Help is Found

  • Articles
    • Code
    • Entertainment
    • Going Green
    • Hardware, Gadgets, and Products
    • Management
    • Network
    • News
    • Operating Systems
    • Security and Privacy
    • Software
    • System Administration
    • Talking Points
    • Tech Solutions
    • Web
    • Webmaster
  • Reviews
  • Media
    • Infographics
    • Videos
  • Tech Events
  • Tools
    • How do I find my IP address?
    • Browser and plugin tests
  • Get a Technical Consultation
You are here: Home / Articles / Security and Privacy / See What Somebody Printed By Listening

See What Somebody Printed By Listening

2010-08-15 by Jason

Here’s an eye-opener that is  very interesting as well as creepy. Researchers have demonstrated how they can place a microphone next to a dot-matrix printer and translate the sounds the printer makes into what was printed, making it possible to spy on the resultant document without ever seeing it.

Acoustic Side-Channel Attacks on Printers

We examine the problem of acoustic emanations of printers. We present a novel attack that recovers what a dot-matrix printer processing English text is printing based on a record of the sound it makes, if the microphone is close enough to the printer. In our experiments, the attack recovers up to 72 % of printed words, and up to 95 % if we assume contextual knowledge about the text, with a microphone at a distance of 10cm from the printer. After an upfront training phase, the attack is fully automated and uses a combination of machine learning, audio processing, and speech recognition techniques, including spectrum features, Hidden Markov Models and linear classification; moreover, it allows for feedback-based incremental learning. We evaluate the effectiveness of countermeasures, and we describe how we successfully mounted the attack in-field (with appropriate privacy protections) in a doctor’s practice to recover the content of medical prescriptions.

(via USENIX Security 2010 abstracts)

More info at The Register

Filed Under: Security and Privacy

Trending

  • How to ‘Unblock’ multiple files at a time with PowerShell
    In Tech Solutions
  • Is a notepad a secure place to keep your passwords? Password Minder thought so
    In Security and Privacy, Talking Points
  • Sounds of a Dying Hard Drive
    In Hardware, Gadgets, and Products, Tech Solutions

Latest Media Posts

Find Out Where To Download SNES ROMs

Find Out Where To Download SNES ROMs

Multifunctional Video Conversion Tools – Wondershare Video Converter

Multifunctional Video Conversion Tools – Wondershare Video Converter

  • Popular
  • Latest
  • Today Week Month All
  • How to ‘Unblock’ multiple files at a time with PowerShell How to 'Unblock' multiple files at a time with PowerShell
  • Command line to take ownership and change permissions Command line to take ownership and change permissions
  • Increase IIS Private Memory Limit to improve WSUS availability Increase IIS Private Memory Limit to improve WSUS availability
  • SOLVED: “This modification is not allowed because the selection is locked.” SOLVED: "This modification is not allowed because the selection is locked."
  • Read the Event Logs on Windows Server Core Read the Event Logs on Windows Server Core
  • Making Distributed Software Development Work: Strategies and Best Practices for Managing Remote Teams Making Distributed Software Development Work: Strategies and Best Practices for Managing Remote Teams
  • customer contactless payment for drink with mobile phon at cafe counter bar,seller coffee shop accept payment by mobile.new normal lifestyle concept The Latest Innovations In Payment Technology
  • How Digital Technology Brought the Rise of the CMO   How Digital Technology Brought the Rise of the CMO  
  • How to Purchase Cryptocurrencies? How to Purchase Cryptocurrencies?
  • Top 6 necessary aspects to consider when hiring Angular developers Top 6 necessary aspects to consider when hiring Angular developers
Ajax spinner

Elevator Pitch

404 Tech Support documents solutions to IT problems, shares worthwhile software and websites, and reviews hardware, consumer electronics, and technology-related books.

Subscribe to 404TS articles by email.

Recent Posts

  • Making Distributed Software Development Work: Strategies and Best Practices for Managing Remote Teams
  • The Latest Innovations In Payment Technology
  • How Digital Technology Brought the Rise of the CMO  

Search

FTC Disclaimer

404TechSupport is an Amazon.com affiliate; when you click on an Amazon link from 404TS, the site gets a cut of the proceeds from whatever you buy. This site also uses Skimlinks for smart monetization of other affiliate links.
Use of this site requires displaying and viewing ads as they are presented.

Copyright © 2023 · Magazine Pro Theme on Genesis Framework · WordPress · Log in