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3 Strange Things Your Phone Might Do If Someone Is Reading Your Messages Without Permission

October 18, 2025 by Abigail Connolly
shefinds | Homepage
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With all of today’s modern technologies, one of today’s scariest issues is having someone hack into your smartphone or collect your personal data.

Your smartphone is supposed to house all of your important data, pictures, memories, apps, messages, and more. However, unfortunately, as technology has evolved over the years, so have scammers and their techniques. Therefore, your smartphone is not invincible. Using information from tech experts, we reveal three things your smartphone might start doing if there’s someone else reading your messages. Read more about them below.

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1. Your 'Read' Receipts Have Changed

One of the best ways to keep track of your message activity on not just your smartphone's usual messaging app, but various other platforms like Messenger, WhatsApp, and more, is to ensure your read receipts are on and that you're keeping track of them by asking a trusted friend or loved one to look into them.

 

For instance, if your friend sends you a message you don't remember receiving or viewing, but their device has told them you've 'read' it, then something fishy could be going on without you knowing.

2. Your Device Is Slowing Down

One of the most classic signs that a smartphone has been hacked or affected by spyware is that it gets slower. It might take longer to turn on, might feel sluggish as you try to perform routine activities, and more. While you might assume it automatically has something to do with the performance quality of your device, it could also be a sign that someone has broken into your phone.

 

If that is the case, your slower phone could be an indicator that your phone has been hacked, and someone has access to a lot of your personal information and data, including your text messages.

3. Your Battery Drains Very Quickly

If your battery starts running out much faster than normal, it could be a sign that something is happening in the background without your knowledge. Certain types of spyware or unauthorized apps can secretly stay active, constantly using your phone's power to monitor activity or access your messages. Even when you are not using your device, these programs can keep running, causing your battery to drop at an unusual rate. If you notice this happening and cannot link it to a new app or update, it might be worth checking your phone's battery settings to see which apps are consuming the most power.

Author:

Editorial Assistant

Abigail is a journalist based in Brooklyn, New York. As an Editorial Assistant for SheFinds, she covers topics ranging from celebrity news and fashion to wellness. She has written for other publications, including Chip Chick, Bandsintown, BroadwayWorld, and more. When she isn't writing, Abigail loves spending time in the city with her friends, being a 'dog mom' to her Chihuahua, and singing along to some of her favorite music.

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