We're talking about two different things here—a slow phone and unrecognized Google logins. They are probably not related unless you jailbreak your iPhone or run some really sketchy sideloaded apps on it. Check iPhone battery settings, which often shows apps that might be slowing down your phone at the top. While you're there, check on battery health. Is it below 80% and does it say the battery needs replacing? Definitely turn on two-step login on Google and log out any unrecognized sessions or devices. Make sure your phone number and backup email are correct. Answer from SLJ7 on reddit.com
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Google Support
support.google.com › android › thread › 398976790 › how-can-i-check-my-phone-is-hacked
How can I check my phone is hacked - Android Community
Skip to main content · Android Help · Sign in · Google Help · Help Center · Community · Android · Terms of Service · Submit feedback · Send feedback on
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Forbes
forbes.com › sites › technology › article › how-to-know-if-your-phone-is-hacked
How To Spot A Hacked Phone Before Your Data Is At Risk
3 weeks ago - On iPhones, Safety Check under Privacy & Security in Settings can allow you to stop sharing information with people or an app and · Lockdown Mode can protect you against a serious cyber attack.
Discussions

How to check if I have been hacked?
We're talking about two different things here—a slow phone and unrecognized Google logins. They are probably not related unless you jailbreak your iPhone or run some really sketchy sideloaded apps on it. Check iPhone battery settings, which often shows apps that might be slowing down your phone at the top. While you're there, check on battery health. Is it below 80% and does it say the battery needs replacing? Definitely turn on two-step login on Google and log out any unrecognized sessions or devices. Make sure your phone number and backup email are correct. More on reddit.com
🌐 r/techsupport
73
52
May 22, 2024
How to check if your phone is hacked
If it was a legit email from Facebook, take it seriously. It'll be a bit of a pain. Sign out of every connected device from the sites. Change password. Save anything super important from either to a zip and scan it for viruses and upload it to a cloud storage. Factory reset everything. Rescan the zip and if it's good put stuff where you need. Like I said, it's a pain, but that's pretty much the safe route. More on reddit.com
🌐 r/techsupport
17
11
January 9, 2025
Is there anyway to tell if my phone is being hacked?
🌐 r/techsupport
How to check if phone has been hacked

Hi , you started correctly, reset passwords etc (hopefully not on her phone though) , I would recommend a factory reset of her phone. Ensure you back up photos via Google photos, and wipe the phone and install the apps from the apps store. Second set all apps to 'private' or friends only and disallow location for all social apps.

More on reddit.com
🌐 r/techsupport
2
1
May 3, 2024
People also ask

What is the number to check if your phone is hacked?
There’s no single number to dial that confirms a hack. However, there are several Unstructured Supplementary Service Data (USSD) codes that can reveal suspicious activity, like call forwarding, SMS redirection, or unexpected network settings. These short codes won’t detect malware, but they can help uncover signs that your phone is being tampered with.
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us.norton.com
us.norton.com › blog home › malware › 11 warning signs your phone is hacked and what to do if it is
11 warning signs your phone is hacked and what to do if it is
Can I run a test to see if my phone is hacked?
Yes, running an antivirus scan using a mobile security app like Norton 360 Deluxe can help you identify malware infections that could be granting hackers access to your device or data.
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us.norton.com
us.norton.com › blog home › hacking › 10 codes to check if your phone is hacked and how to fix it
10 codes to check if your phone is hacked and how to fix it
Does turning off your phone stop hackers?
Temporarily, yes. Shutting off your phone disables active connections and running processes, halting most hacking attempts. But once it’s powered back on, any hidden malware or backdoors may resume functioning, so it’s not a permanent fix.
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us.norton.com
us.norton.com › blog home › malware › 11 warning signs your phone is hacked and what to do if it is
11 warning signs your phone is hacked and what to do if it is
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Proton
proton.me › blog › how-to-know-if-your-phone-is-hacked
How to know if your phone is hacked — and what to do next | Proton
March 3, 2026 - If the settings on your phone suddenly change without warning, for instance camera and microphone access for apps or two-factor authentication being switched off for your accounts, your phone could have been hacked.
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Reddit
reddit.com › r/techsupport › how to check if i have been hacked?
r/techsupport on Reddit: How to check if I have been hacked?
May 22, 2024 -

So, I noticed my iPhone got really slow suddenly. And I didn't recognize some of the logins listed when I checked my Google activity. Have I been hacked? Or am I paranoid? I’ve been reading up on how to check if I have been hacked, but I would like to hear from you guys.

Other signs, I’ve found out, could include an increase in spam, strange popups, and apps opening on their own. That does not happen to me. So, how do I know for sure? What other signs should I look for?

And another thing, what to do when you've been hacked? Articles on the internet state that it’s good in these situations to:

  • Change your passwords to unique and strong ones. I personally decided to get Nordpass at the moment. This comparison table helped me a lot when choosing.

  • Secure login with two-factor authentication.

  • Sign out of all devices.

  • Check all accounts’ recovery information: recovery email and phone numbers should be yours.

  • Notify your contacts about the hack.

What else?

Thank you for your help.

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Norton
us.norton.com › blog home › malware › 11 warning signs your phone is hacked and what to do if it is
11 warning signs your phone is hacked and what to do if it is
May 5, 2026 - However, there are several Unstructured Supplementary Service Data (USSD) codes that can reveal suspicious activity, like call forwarding, SMS redirection, or unexpected network settings.
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Norton
us.norton.com › blog home › hacking › 10 codes to check if your phone is hacked and how to fix it
10 codes to check if your phone is hacked and how to fix it
June 8, 2026 - If you have a Samsung Galaxy device, dial *#197328640# to open a service menu where you can view network connection details, such as signal strength and cell tower information. While this won’t directly confirm that someone hacked your phone, ...
Find elsewhere
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Certo Software
certosoftware.com › insights › guides › how to check if your iphone is hacked in settings
How To Check If Your iPhone Is Hacked In Settings | Certo Software
September 18, 2025 - However, hackers can use malicious profiles to install unwanted software or change mobile device settings without your consent. Here’s how to check for unknown profiles via settings: Open the Settings app. Scroll down and tap General.
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Reddit
reddit.com › r/techsupport › how to check if your phone is hacked
r/techsupport on Reddit: How to check if your phone is hacked
January 9, 2025 -

Hi everyone, sorry to bother you today but this morning I just got a notification on my gmail alerted me that my facebook account has been added 1 more gmail (a completely strange email). I am not sure how they did it but first thing I did is making sure to remove it, then completely secure my facebook and email account. However, I'm not a tech savvy so I want to check if my phone (or my laptop) is hacked or not. For your information my phone is Android and laptop is Dell

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Norton LifeLock
lifelock.norton.com › learn › internet security › is my phone hacked? 11 ways to tell
Is my phone hacked? 11 ways to tell - LifeLock - Norton
May 5, 2026 - To tell, check which apps are using the most data in your settings. Unfamiliar apps you don’t use frequently shouldn’t consume much data; if they do, you could be dealing with malware.
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Instagram
instagram.com › reel › DPe814MgJ1Q
How to check if your phone been compromised
9M Followers, 30 Following, 5 Posts - @reel on Instagram: ""
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Dashlane
dashlane.com › blog › how-to-know-if-your-phone-is-hacked
How to Know If Your Phone Is Hacked | Dashlane
May 20, 2026 - Small steps like keeping your phone updated and turning on security settings like 2FA will go a long way to safeguard your phone from hackers.
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Security.org
security.org › home › complete guide to antivirus protection › antivirus software how-to guides › what to do if your phone has been hacked
What To Do if Your Phone Has Been Hacked | Security.org
June 29, 2021 - Antivirus software excels at preventing ... doesn’t work, consider a more effective solution: resetting your phone. Launch the “Settings” app....
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McAfee
mcafee.com › blog › mobile security › how to know if your phone has been hacked
How to Know If Your Phone Has Been Hacked | McAfee Blog
2 weeks ago - Is your phone performance is off, things crash, and so on? While there are several cases where there’s a legitimate technical issue behind that, it could also be the sign of a hacked device.
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McAfee
mcafee.com › blog › how to guides and tutorials › how to tell if your smartphone has been hacked
How to Tell If Your Phone Has Been Hacked and What to Do | McAfee Blog
December 17, 2025 - Play Protect runs automatically but a manual scan can help confirm if your phone is hacked. For iOS, use Apple’s Safety Check: To check if your iPhone has been hacked, go to Settings > Privacy & Security > Safety Check.
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Certo Software
certosoftware.com › insights › guides › 10 ways to tell if your android phone is hacked
10 Ways to Tell if Your Android Phone Is Hacked | Certo Software
December 23, 2019 - The most telling signs of a hacked Android phone include, unexplained data usage, rapid battery drain, unusual apps and Google Play Protect being disabled. These signs, along with antivirus alerts, suggest unauthorized access to your device, ...
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MakeUseOf
makeuseof.com › home › security › 5 ways to check if your android device is hacked
5 Ways to Check If Your Android Device Is Hacked
November 26, 2024 - Even if you don't see clear signs of suspicious activity, something malicious can still happen behind the scenes. One of the best ways to see if your phone has been hacked is to check your battery usage.
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ZDNET
zdnet.com › home › tech › security
5 telltale signs that your phone has been compromised (and how to combat them) | ZDNET
March 25, 2026 - If you think you've lost free space, check your used storage under settings. Assuming you haven't installed any apps or added content recently, see if the amount of used space is higher than when you last checked. 5. Apps you didn't install. If you do spot an app that you don't remember installing, a hacker could be responsible.
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Avast
avast.com › c-phone-hacking-signs
How to Know If Your iPhone or Android Is Hacked & What to Do
May 18, 2026 - If you think someone has hacked a linked account on your phone, look out for: Login alerts from unfamiliar locations or devices. Password reset emails you didn’t request. Messages sent or posts made that you don’t recognize. Security settings changed without your permission. You can also check if your email account has been signed into using a hack check tool.
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MensXP
mensxp.com › home › technology › smartphones
How to know if your phone is hacked and what to do next
September 18, 2024 - Samsung Android 14.0 or above: Settings > General management > Reset > Factory Data Reset > Reset ... If you’ve noticed any unusual activity in your accounts, immediately reach out to your bank and notify them.
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Clario
clario.co › clario anti spy › blog › ios security › codes to check if your phone is hacked. what to dial to see it?
Codes to Check If Your Phone Is Hacked. What to Dial to See It?
March 18, 2026 - There’s no universal code to ... sometimes used in stalking or fraud. Dial *#21#, *#62#, *#67#, or *#004# to view forwarding settings, and use ##002# to disable all of them at once....