Questions tagged [iphone]

The iPhone is a line of smart phones designed by Apple Inc, running Apple's iOS mobile operating system. The first generation iPhone was released in 2007 and has followed an annual release schedule since.

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Getting 'cannot verify server identity' only on wireless LAN. Is this a MITM attack?

I am getting the notification 'Cannot verify server identity' for every single website I try to open on an iPhone. This, however, only happens when connected to a certain WLAN. On mobile internet this ...
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iOS (iPhone) S/MIME certificate with multiple addresses

On an iPhone I have a mail account in the native Mail app with two distinct e-mail addresses, and a certificate that lists both of those e-mail addresses in the SAN field. When I try to send mail with ...
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Suspicious MAC address when using personal hotspot (iPhone and MacBook Air)

Personal hotspot connection from iPhone 12 used on my MacBook Air. Under Settings - Mobile Data - Personal Hotspot (iPhone), I see 2 data usage components: 1.5 GB - MacBook 20.2 KB - A suspicious MAC ...
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When the phone breaks and I regret encryption

I believe most new Android phones have full encryption enabled by default, so even if I just download some PDF weather report from the internet, it will sit encrypted on my phone's SSD. Now, suppose ...
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What can schools see on your iPhone

If you have connected your iPhone to the school's network by using your user name and password, can they see text messages you have sent while connected to their network? In addition, can they go back ...
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Family member received iMessage suggesting a connection/phone breach. What is really happening here?

This family member is an iPhone user. I am an Android user. The messages look normal until a short while ago, when it appears the connection was switched to iMessage. They immediately used another ...
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2 votes
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Can "Dylib Hijacking" happen on iOS app?

I'm told that Dylib Hijacking vulnerability exists on Mac applications. And he told me that, in theory, it can also happen on iOS apps. I googled a lot for any discussion about it, but nothing was ...
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2 answers
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Should I be worried about an "untrusted enterprise developer" on iOS?

I have to install some apps on my personal iPhone developed by a large company. My phone warns me that they're "untrusted enterprise developer" and not the "App Store" I must give ...
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How to look a gift iPhone in the mouth for spyware?

Someone I have been dating has suddenly bought me a brand new iPhone. I have legitimate reasons for harbouring a niggling suspicion that this could be a ruse to steal passwords and bank details, just ...
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Does the device attributes section of Facebook's data policy entitle it to private files on my device?

I was reading through Facebook's data policy which also encompasses instagram, messenger, etc. It looked like the usual all encompassing breach of privacy I have come to expect from the company but ...
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What happens when app have access to your photos?

These days I see many apps request access to photos on iPhone. I understand app request access to photos to iOS which then request access to me, that sounds ok. In that context I can allow access to ...
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How could someone hack/take control of an iPhone?

I'm interested to know how someone would be able to hack (i.e. gain remote access) to an iPhone. Would knowing the iCloud password tied to the device be sufficient? Or would they also need to have ...
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Is the "trusted phone number" inside your Apple ID a security flaw?

Imagine your iPhone gets stolen or seized. Inside this iPhone is your SIM-Card. That SIM-Card is your only SIM-Card and it is enlisted as "trusted phone number" in your Apple Account. The ...
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Do iPhones still send packets when they are completely shutdown?

Do iPhones (or just a smart phones in general) send packets when they are fully shutdown? I have heard that they do, but I have not been able to verify such a claim. In an effort to investigate, I ARP ...
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My iPhone XS called someone today without my interaction

Yesterday, I was sitting at the computer and noticed that the phone is making the "calling" sound (that usual beep). I unlocked the phone and did not see any activity like I would call ...
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Radio transmission on my whatsapp voice note

I was sending a voice note to a friend and when I listened to it, the first ~6 seconds were completely normal and then something weird happened. A radio transmission from some radio station (I don't ...
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4 votes
1 answer
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iMessage sent to contact that I did not type or send!

I have an iPhone XR with iOS 14 with security issues in the past. One of my email addresses showed up on to data breach websites and the password I use was the same for all of my accounts like a dummy....
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Current iOS Spyware/Stalkerware Capabilities [closed]

I have a child domestic violence victim I am trying to collect evidence from and coordinate relief for (remotely), but I have cause to believe her phone and/or identity has been hijacked in the past ...
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If i click on a link could it contain a virus inside iphone + IOS 14.4 [duplicate]

I was searching for some articles on google using my iphone 11, IOS version 14.4 >> and i find a link inside google search result >> then i click on the link which is from a trusted site &...
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33 votes
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Is there any hope of getting my pictures back after an iPhone factory reset some day in the future?

Four months ago I lost all my data after an iTunes update automatically restored my phone to factory defaults. I lost all the pictures of my newborn. I understand that when you do a factory reset the ...
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2 votes
1 answer
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Are preview thumbnails for links a risk?

I received a message from a friend with a link. I never clicked it, but the thumbnail image shown pretended to be an image preview for a YouTube video. Some of her other friends clicked it and it took ...
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How to secure file delete/wipe on mobile phones?

With old HDD to secure delete a file you need to use Gutmann standard, but with new HDD you can use only 1 pass overwrite I'm not sure what hard drives mobile phones use and don't know how many passes ...
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What should I do if I'm a victim of phishing attack of my iphone

I received an sms on my iphone informing me from my local delivery company that I have a parcel pending and to click on the link, which I did as the link bought me to my local delivery company home ...
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Connect Cables in pc and it’s affect [closed]

Is there anyway I can know if the cable I use to charge my phone in it was connect to my pc before or not? Is there something in pc can let me see that because my pc contain some malware and spy files ...
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Passwords via unsecure network [duplicate]

Can the password that one type be compromised if mobile is connected to a compromised router since everything has to go through the router?
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Can an iOS backup be compromised?

I originally posted this on the Apple Stack Exchange but it was suggested that it was off topic, so I’m posting it here in hopes that this is a more relevant place for it. Say that an iOS device has ...
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Can deleted snapchat messages be recovered? [closed]

If there are chats that have been deleted, is there a way to recover these with any recovery tools, or are they gone forever?
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iCloud deletion

If I delete photos which are stored in iCloud from my phone. (Which is also linked to my iPad) I know the data is then made ‘free space’ but is still on the phone In some format. If I delete it from ...
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Can people hack your iPhone Via Bluetooth if you leave it on?

I live in an apartment complex with lots of people, and oftentimes I would be able to see Bluetooth devices that do not belong to me on my iPhone or MacBook when I search for my Bluetooth device. ...
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1 vote
1 answer
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Can Bluetooth "headphones" be malicious?

I received a parcel from Amazon which I did not order, addressed to me. It contained Bluetooth earphones. It may just be part of a brushing scam, but it's got me curious. So my question is.. Could a ...
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How to retrieve deleted data from Iphone? [closed]

My data got deleted from iPhone. I tried to recover all images and videos using some third party softwares like dr.fone, stellar, etc but all these apps allow only preview of the data but can't ...
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1 vote
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Why did I get incorrect wifi password pop up for unknown network on iPhone?

A few months ago my iPhone had a pop up saying 'incorrect wifi password' and telling me to enter the correct password, however it was for a network that I had never connected to or seen before. It ...
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Can the photos/videos I deleted a year ago can still be on my iPhone or on the Internet?

I have been getting paranoid lately and decided to ask for your insight on this issue. A year ago, I took photos of some personal information (cc, passport, etc), and deleted them a month later, along ...
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1 vote
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Risks of choosing yes for remembering password for iPads, iPhones not having iCloud Keychain

Our mobile devices(iPhones, iPads) don't have iCloud Keychain which seems to have AES 256 bit encryption for storing credentials. The mobile browsers in those devices like Safari, Firefox, Chrome ask ...
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0 votes
1 answer
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Can MDM on an iPhone restrict custom keyboard usage?

I have an iPhone that runs 13.3.1 (latest at this time). It's a corporate phone and has an MDM profile installed. I've been using the phone for almost 2 years now with a custom keyboard (Google ...
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Biometric authentication against server

I'm working on an iOS app whose login system does not seem entirely secure but I don't know enough to be sure. Skipping account creation, the first time the user logs in they send their user and ...
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2 answers
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Is it safe to browse the internet with unpatched iPhone with iOS 13.1.3?

I am using unpatched iPhone that has IOS 13.1.3 installed. Apple released IOS 13.1.3 15 Oct 2019. Are there any vulnerabilities for IOS 13.1.3's safari that are currently being exploited in the wild?...
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1 vote
1 answer
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Attack that stops internet access for several minutes

I have a question that might sound a bit weird: A friend of mine (Person A) is being attacked by a former friend (Person B) and now person A asked me for help. Person A and Person B know each other ...
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4 votes
2 answers
9k views

Can someone hack my phone by sending me a file (e.g. PDF) via Whatsapp?

My work requires (and depends on) Whatsapp for daily sharing of files with many people (PDF, PowerPoint, Word, Images, Web links...), and I was wondering if it is possible that someone can hack our ...
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How could a mobile banking app be hacked?

My phone got stolen, and sent back to where it was stolen a day after. At the moment of stealing, the phone was locked. When I received it back, there was no money left in my bank account. The ...
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1 vote
1 answer
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Is it a good (or not harmful) idea to allow employees to use their company phones privately?

As I try to come up with company regulations for IT security, the question arose if employees can use their company provided iPhones 8 for personal matters. Specifically they want to install spotify (...
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A recieved text message that was never sent on iPhone [duplicate]

My girlfriend asked me why I texted her at 2:30 am. But I went to bed at 2am and that message was not recorded on my phone. She had an iPhone and I have a Samsung Galaxy S9. She sent me a picture of ...
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2 votes
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Effective ways to hide your IP address and Device Information from apps on Mobile? [closed]

How can you make sure site admins are not able to get information like your IP, Browser, Device, etc?
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0 votes
1 answer
72 views

How can I setup 2fa on iphone with 1 phone? [closed]

When setting up my refurbished iphone se, it wants a phone # for 2fA... I have one phone. It's not sitting on a desktop, I carry it with me places. The other option is to not use 2FA, which it ...
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Anti-Theft Mobile CPU

The newest Android phones use the Qualcomm Snapdragon 855 chipset with its TrustZone/TEE. The Android OS makes sure that a stolen phone, in its assembled form, is not usable. Does Trustzone further ...
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1 vote
1 answer
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Can one iOS app read the data of another iOS app maliciously?

I'm writing an iOS app that will store some information. Though not too confidential, I'd like to prevent other apps from reading the data, since a malicious app can then "phone home". If the user has ...
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How much of a security risk would the apps on my iPhone pose if I did my banking on iPhone?

I have a bunch of different apps on my iPhone 7 (iOS v.12.4.1). Some of these are made by large companies such as Amazon, McDonalds, and so on. There are also some that have been made by perhaps a ...
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1 vote
0 answers
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How much entropy does Apple Touch ID sensor read fingerprint has?

Iphone uses by default 6-digit PIN that has an entropy of 19.93 bits When iPhone processes the fingerprint, how much entropy does it have? How long should standard passphrase be until it is as ...
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5 votes
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Do modern operating systems still send targeted or directed Wi-Fi probe requests that contain SSIDs?

Do modern (versions of) operating systems, primarily Android and iOS on mobile, still send targeted or directed probe requests when searching for Wi-Fi networks to connect to? Such targeted or ...
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can a malware for iphone survive to hard reset?

My question is about a malware on the device Iphone 6s. Can a malware on Iphone survive to an hard factory reset ? The malware would be installed from the shop where I bought it.It's a second hand ...
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