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Tech Corner

What is Signal?

3/26/2025

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Signal has been in the news a lot lately, and maybe you’ve been wondering what it is.
​
Signal is a free app you can use to send messages, make phone calls, and video chat with friends and family. It works a lot like WhatsApp or iMessage—you can send texts, pictures, videos, and even have group chats.

What makes Signal different is that it’s built for privacy. Everything you send on Signal is protected so that only you and the person you’re talking to can see or hear it. Not even the people who run Signal can read your messages.

Signal also doesn’t collect your personal information. It doesn’t store your messages or track who you’re talking to. It’s made by a nonprofit organization, not a big company trying to make money off your data.

That said, no app is 100% foolproof. If someone has access to your phone, they can still read your messages. And if you’re talking to someone who takes screenshots or shares what you say, Signal can’t prevent that. So while it’s one of the safest options out there, it’s still smart to be careful about what you share.
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If you want a simple, secure way to talk to people without being spied on or tracked, Signal is a great choice.
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    Aimee Clark

    Hi there! I’m the IT Librarian at the Spencer Public Library. Welcome to the Tech Corner, where I’ll be diving into all the excitement — and headaches — from the ever-changing world of tech!

    Need Tech Help?
    ​Click Here


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  • Home
  • Search Our Catalog
  • Library of Things
  • Calendar
  • About Us
    • Staff and Board
    • Policies
  • Services
    • Youth Services
    • Adults
      • Adult Services News
    • Interlibrary Loan
    • Home Delivery Service
    • Meeting Rooms
    • Blood Pressure Monitors
    • Mobile Hotspots
    • Mobile Print
    • Notary Public
    • Little Free Pantry
    • Genealogy Help
    • Newsletter
    • Audiolab
    • Tech Help
      • Quickstart Guides
        • Catalog Tips and Tricks
  • eBooks & Audiobooks
  • Online Resources
  • Do Research
    • Iowa Lakes Genealogy Society
  • Summer Reading Program
    • RPG Camp
  • Staff Picks
  • Beanstack Reading Challenges
  • Tech Corner
  • Dewey the Library Cat
    • Dewey's Job Description
    • Dewey Merch
    • Dewey's Rules