The following signs may indicate that someone is using your phone's camera to watch you: Suspicious background apps. Camera misbehaving. Odd files and inexplicably low storage space.
When you dial *#21#, it will display the various sorts of diversion status which is happening with the number. This will display the information and you will come to know if your calls or messages are tapped.
Certo makes applications that check if your device has spyware apps on it: Certo AntiSpy for iOS devices runs on your PC or Mac and investigates your device's backup, rather than the phone itself. It checks for tracking services, hidden apps, and anything with access to your location, microphone, or camera.
Even if you protect your smartphone with a strong password, it's still possible to be hacked. Seemingly innocent Android apps have been discovered to contain spyware, and if you've jailbroken your iPhone, someone can install spyware on your device.
The truth is, yes. Someone can listen to your phone calls, if they have the right tools and they know how to use them – which when all is said and done, isn't anywhere near as difficult as you might expect.
Now the creators of the Secret SMS Replicator have created a counter measure app called Reveal that allows users to check and see if they are being tapped.
For extra peace of mind, you can enlist the help of a third-party tool: Incognito, Certo, and Kaspersky Antivirus are three phone-scanning apps that come well recommended by their users, and they should tell you if you have anything to worry about.
Code to check if phone is tapped: *#21#
Some hackers go further and forward all your calls and messages, no matter if you're available or out of reach. This type of attack is called unconditional data forwarding or diversion.
Use the code *#21# to see if hackers track your phone with malicious intent. You can also use this code to verify if your calls, messages, or other data are being diverted. It also shows your diverted information's status and the number to which the information is transferred.
Fix a hacked Android phone with a factory reset
A factory reset is a simple procedure that completely cleans your phone's internal storage. A factory reset deletes not only your photos, videos, messages, and other personal data, but also wipes out malware that lets hackers in.
Lastly, with the *#002# settings interrogation short code, you can see all forms of call forwarding on your line. If everything says "Disabled," you have nothing to worry about. If there are numbers listed, they could be put there by someone else, or they could be the number for your voicemail box.
Sign in to the Apple ID website (https://appleid.apple.com) and review all the personal and security information in your account to see if there is any information that someone else has added. If you have two-factor authentication turned on, review trusted devices for any devices that you don't recognize.
With their GPS radios and constant data connection, smartphones are technically capable of tracking our location and monitoring our activity, which is enough to raise privacy concerns among users. Few people know, however, that phones can be tracked using little more than a text message.
Shoulder Surfing. It's not exactly sophisticated, but criminals can eavesdrop on your mobile communications simply by standing next to you, listening to your call and looking at your phone screen. Shoulder surfing is a common form of attack at cash machines, for obvious reasons, but mobile devices are at risk too.
Poor performance: If your phone shows sluggish performance like crashing of apps, freezing of the screen and unexpected restarts, it is a sign of a hacked device. Unrecognised apps: If you notice any unrecognised applications downloaded on your device, it could be the work of a hacker.
Can I block a specific caller even if I don't know their phone number? (*97) Yes, Call Blocking can be used to prevent incoming calls from the last caller. For example, if a telemarketer calls and you want to block them from calling again, the *97 feature lets you do this without requiring the phone number.
*#62# - With this, you can know if any of your calls - voice, data, fax, SMS etc, has been forwarded or diverted without your knowledge.
What it does. ##004# Resets call forwarding to default. **21*1+PhoneNumber# Turn on unconditional forwarding (CFU) to a number (prevents calls to your number)
Reset your phone
The majority of malware can be removed with a factory reset of your phone. This will, however, wipe any data stored on your device, such as photos, notes, and contacts, so it's important to back up this data before resetting your device.
Signs Your Phone Has Been Hacked
Your phone is running slower than usual. You notice strange activity on your online accounts, like unfamiliar logins, new account signups, or password reset emails. You see unfamiliar calls or texts. You get more pop-ups than usual; this could be a sign of adware.