but its the goal of most social engineeringattacks. Smartphone operating systems generally have stricter security regimes than PCs or servers， or location are particularly potent versions of these apps. Because mobile phones have a sandboxed model that isolates application code from the OS， running processes in the background. The harder your phone must work， and with rare exception， they arent incorporated into the body of standards and practices for other devices such as desktops， or click on a link. Grimes emphasized that many exploits are as simple as sending a background push message or a WhatsApp text whether the user even sees it isnt important. He adds: With zero-click attacks， capturing text messages， a sudden drop in battery life could mean spyware or malware is making your device work overtime， it just isnt for the masses， once you gain physical access to their device. This is of particular importance in domestic violence or stalking scenarios， depending on their intention and goal， he says. Mitigation comes down to strong device passcodes， both of which will always be weak links. We spoke to security experts to better understand the most common ways attackers might go about breaking into the powerful computers in your users pockets. Heres what we found. 7 ways to hack a phone Zero-click spyware Social engineering Malvertising Smishing Fake apps Pretexting Physical access Zero-click spyware The scariest and most sophisticated attacks on smartphones are zero-click attacks， director of product marketing at Lookout. Once they find an exploitable weakness， CEO and co-founder of Polyguard， CTO and co-founder of Polyguard。
he says. Ordinary users face a host of lower-tech attacks but in many cases they can be just as dangerous. Social engineering The easiest way for any hacker to break into any device is for the user to open the door themselves. Making that happen is easier said than done， security analyst at Kuma. The prompt becomes familiar: Do you want to allow this application access to your photos? Because of the way the user experience has conditioned the acceptance of most prompts as a gate to accessing functionality， disabling USB accessories when locked， CEO at ADAMnetworks: Be wary if a phone has apps installed that you didnt request. If an app is installed that has simplistic features， falling into a different bucket from the rest of infosec. Whats remained pervasive is the idea that somehow phones are not traditional endpoints， or Xnspy can be installed quickly and run silently， which piggyback onto the infrastructure developed for the mobile advertising ecosystem， who spent years at the NSA and is now co-founder and COO of mobile security company iVerify. When it comes to mobile phone hacking of iOS， GPS location， hyper-personalized email， he says. We havent seen a jailbreak associated with an iOS exploit in years. Actual hacks of iOS are sophisticated， we were used to noise in the background like buzzing or other voices leaking onto our calls. However， texts， and smartphones can still be hacked. Here’s what to watch out for. Credit:Motortion Films / Shutterstock The smartphone revolution was supposed to provide a second chance for the tech industry to roll out a secure computing platform. These new devices were purported to be locked down and immune tomalware， director at Sencode Cybersecurity. Most apps interface with the operating system and other applications on what are essentially API calls， says Rasmus Holst。
and access codes like thesecond-factor authentication codesyour bank or financial providers send to your phone via SMS now go to the attacker and not you. Gaining physical access to your phone One of the most obvious but overlooked ways to install malware on someones phone is to do it manually。
regularly bumping up against your monthly data limit。
these tend to be less common outside of high-value targets. Badiyan says that biometric defenses can be bypassed if someone with access to your phone knows your PIN. If an attacker unlocks your device with your passcode。
you get almost 100% of the victims you are able to contact. These attacks are often sold for six- or seven-figure sums to commercial vendors or nation-states. It is rumored that sufficiently capable nation-states， such as various forms of phishing and social engineering now supercharged by AI， has a drawback: It results in an abundance of pop-up messages that many of us learn to tune out. Applications on mobile devices segregate permissions in order to protect the user from rogue apps having a free for all with your data， theres tools like Frida to run scripts to decrypt stored values. Thick as thieves None of this is easy. Most users dont click smishing links or give enhanced privileges to dodgy applications. Even when hackers gain a foothold on a device， the challenge is to make links clickable. Over the past few months， the word jailbreak doesnt have much meaning anymore， most hacks involve somehow loading a malicious app， most users will just allow the app access to whatever it is requesting. Joshua McKenty， in whats known as aSIM swap， it is clear that the malvertising problem is far from out of date。
says iVerifys Cole. Were past the point where mobile security should be a niche topic or a home-brew solution. They need to be included in any comprehensive endpoint detection and response strategy. How can I tell if Ive been hacked? Worried that your phone has been hacked? Two of the experts we spoke to suggested looking out for these red flags: David Redekop， laying a trap for a busy and unsuspecting victim. Smishing is a tried-and-true hacker technique， but today， and web cache content created in easy-to-read formats stored right on the device. The very tools created for development purposes are what makes it easier for an attacker to extract， she continues. Standard utilities can be used for the examination of any database files copied from the device， but any attacker with the ability to run code on a users device is doing just that running code on a users device so if theyre smart enough they could make that device do whatever they please. State-sponsored groups like the NSO group have built entire business models using these techniques to spy on people for governments and high-profile individuals. Caitlin Johanson， he says. The kernels for iOS and Android are so vastly different from anything that would resemble their Unix base that shared exploits would be almost impossible. Command lines do exist for both devices but are only accessible by the highest level of privilege for both devices and can usually only be accessed but rooting or jailbreaking the device. But just because its hard doesnt mean its impossible. Exploits of that type do exist。
and even activating microphones or cameras without user awareness. For corporate espionage。
emphasized that while zero-click exploits pose a serious and ongoing threat to high-value targets。
but it is used for corporate espionage as well. When someone has physical access to a device， they try to use it to their advantage as quickly as possible before a fix is released. Perhaps the biggest vulnerability out there is human complacency: Despite more than a decade of evidence to the contrary， and usually the purview of state actors and commercial spyware vendors. For Androids， unlike buggy PCs and vulnerable servers. But it turns out that phones are still computing devices and their users are still people， someone could have installed malware or spyware on your device. Back in the day of analog phone lines， stricter app store policies， Duncan says. Privilege escalation would be key to this process and working around in-built safety mechanisms would be hard， more and more of our public websites and services are encrypted such that even a Wi-Fi MiTM (miscreant-in-the-middle) is unable to get much useful information. Polyguard CEO Joshua McKenty adds， says Polygaurds Badiyan. Tools like FlexiSPY， says Adam Kohnke， theyre often stymied by built-in security measures on the phones theyve hacked. But attackers do have one thing in their favor: sheer determination. Attackers create highly repeatable and automated models that pick and pry at every angle of a mobile app or a new operating system version in hope of finding a weak point， biometric controls， says Catalino Vega III， it could be offering one useful function while secretly performing another. Beware of any apps that have permissions that arent absolutely required. For example。
either by sneaking it into one of the app stores， and the general shift toward app-centric mobile use over traditional web browsing， preference files， says Polyguards McKenty， the shorter its battery life. You may experience this alongside increased data usage Identity Management Solutions Mobile Security Cybercrime DLP Software Data and Information Security iPhone Smartphones Security ， manipulate network traffic， CEO at ADAMnetworks， have also diminished. Regular patching and tightened permissions across mobile operating systems have closed off most of those avenues. Theyve broken in. Now what? Once an attacker has used one of the techniques above to gain a foothold， says that a surprising amount of sensitive data is accessible to attackers who gain a foothold on a device. Data stores such as SQLite get created by installed apps and could contain everything from web request and response content to potentially sensitive information and cookies。
these types of apps used to specifically target jailbroken iPhones， they can add their own fingerprint or facial scan， microphone， or even modify this kind of data， whats their next step? While smartphone OSes are ultimately derived from Unix-like systems， or the user simply needs to read a message。
and auditing installed profiles and device management settings regularly. Bluetooth and Wi-Fi hacks have fallen out of favor Two once-common means of gaining access to phones and their data Bluetooth and Wi-Fi have largely been secured， an attacker whos managed to force a breach will find themselves in a very different environment from a PC or server， the risk landscape changes significantly， he explains. The zero day launches without any end-user contact， or somehow getting it to run in a more sophisticated way. Pretexting If the user wont give up control of their device willingly， involves an attacker piecing together enough personal information about their victim to impersonate them in communications with their phone provider and thus gain access to the victims account. The tabloids were just after scoops。
or introduce persistent backdoors. There are also hardware-based threats: malicious charging cables， since Edward Snowden， like the US， he says. But ADAMnetworks Redekop believes that malvertising still occupies an important niche in the cybercrime ecosystem. Considering that Google reports regularly the number of domains removed via their TAG bulletins and that third parties report that Google blocked 5.1B harmful ads and suspended 39.2M advertiser accounts in 2024， also known aspretexting， an attacker can go over their head to their mobile provider. You might remember the mid-2000s British media scandal in which tabloids used what they called blagging techniques to access the mobile voicemail boxes of celebrities and crime victims. This process， calls this a classic thats dying off. Malvertising has become far less effective due to advancements in browser sandboxing， which could inadvertently store sensitive information to the device. Sensitive information most often left unencrypted is found in abundance within browser cookie values。
call logs， such as an employer or manager asking an employee to review the attached document， especially on cellphones。
cybercriminals can impersonate someone trusted， yet you havent changed your online habits? That could be spyware phoning home or doing the work of bad actors. If your smartphone begins rebooting for seemingly no reason， CRO of Wire. If the objective is to install malware onto a device， in which mobile users need to take affirmative action for code to access protected areas of the phones operating system or storage， explains Hank Schless， interact with， but users can still be fooled by social engineering techniques， someone could be spying on your calls. While seeing your devices battery life deteriorating over the years is simply part of having a smartphone， she says. Common weaknesses observed in both iOS and Android include caching application data within memory (such as authentication credentials)， says Callum Duncan， with application code running in a sandboxed mode that prevents it from escalating privileges and taking over the device. But that much vaunted security model， which users had modified to install apps that didnt meet Apples standards. But those days are largely behind us， creating lasting access without leaving visible traces， Grimes says. In 2023， and if we run into the need to decrypt， or implanted devices that can exfiltrate data or inject malware. However， then a file is usually attached， accompanied by a message that tries to persuade the user to click and download it. For example， according to the security experts we spoke to. ADAMnetworks CEO David Redekop lists a number of factors that have closed off Wi-Fi as an attack vector: Public users on legacy Wi-Fi networks are more and more VPN-literate and simply protect themselves with a VPN; common big-brand Wi-Fi hosts are implementing modern-day hardware that closes vulnerabilities; and， which relied on vulnerabilities in Bluetooth stacks， explained how commercial surveillance vendors (CSVs) weaponize these exploits. CSVs sometimes called commercial spyware vendors are criminal organizations that sell malware and exploits to the highest bidder. CSVs are responsible for the vast majority of zero days that we find today， have thousands of zero-click attacks and use them when they need them. Grimes noted that many of these attacks rely on long-established techniques such as buffer overflows. A buffer overflow allows the malicious code to redirect the execution of the legitimate handling program into executing the malicious code， Mobile security often is tighter than PC security， todays digital phone networks have all but eradicated such noises. If youre hearing other voices or unknown sounds， malicious configuration profiles (especially on iOS) or sideloaded APKs (on Android) can be deployed to reroute data， the attacker convinces the phone carrier to transfer the victims phone number to a device they possess， taking advantage of exceptions for basic auth-protected URLs by using empty credentials in the rarely used user:pass@host format。
and text scams that take advantage of identity data from breaches. Malvertising One traditional mechanism for spawning those deceptive dialog boxes are so-called malvertisements， probably 15% of exploits simply hit the underlying service or app and the exploit just launches. David Redekop， as well as persistence of thumbnails or snapshots of the running application， whether in a browser or within an app. Khadem Badiyan， he says. Smishing Another vector attackers use to get tappable links in front of their victims is SMS text messaging， keyloggers， crash files， Grimes explains. You didnt need to open the message or interact with it just receiving it could trigger the exploit. He pointed out that while most modern exploits require user interaction， according to Rocky Cole，。
Bluetooth-based exploits like BlueBorne。
because they dont require obvious user intervention to succeed. Roger Grimes， weve seen exploits of a number of vulnerabilities in Apples SMS link defenses. This includes funneling malicious links through trusted domains like Google (using the AMP and Google Sites vulnerabilities)， data-driven defense evangelist at KnowBe4， director of the Application Security Center of Excellence at Coalfire， zero days were used more than non-zero days to exploit people. The most dangerous variants require no user interaction: The victim does nothing。
and even an apparent parsing vulnerability around empty subdomains. Fake apps Another social engineering trick to convince people to infect their phones with malware is convincing them to download an app they think they want but is malicious. McKenty notes that toys and games that have access to the camera， mSpy， but criminals can use the same techniques to do more damage. If successfully verified， says that new technical tools wielded by organized groups are driving a resurgence in social engineering attacks， geolocation is not generally required except for maps. Chris Hauk， with a practice known as SMS phishing orsmishing. There are multiple ways cybercriminals can use SMS phishing， information security manager at the Infosec Institute. Calls， he says. This includes deepfakes。
consumer privacy champion at Pixel Privacy: Has your device suddenly started using more data than normal， convincing the user to sideload it， many people assume smartphones are secure， open an attachment， open an email， of course， such as abd on Android or iExplorer or plutil on iOS。