In 2024, 83% of phishing attacks targeted mobile devices, and mobile malware saw a 13% increase compared to 2023. As hackers get more inventive and capable, you need to pay more attention to mobile wireless security.
The problem here is that wireless security is an umbrella term encompassing an entire ecosystem of practices. To stay safe online, you need to know precisely what you’re up against and how to safeguard your devices.
What Is Mobile Wireless Security?
Mobile wireless security is a set of practices that protect your data, devices, and networks you connect to from malicious attacks and vulnerabilities that third parties can exploit. It aims to ensure complete privacy and confidentiality of data, particularly sensitive information like:
- Personal identifiers
- Banking and other payment information
- Private media
- Sensitive business information
By definition, wireless security focuses specifically on attacks that happen over the network your devices connect to. It is (or at least should be) a part of a broader security strategy that also encompasses:
- Physical device security
- Responsible handling of private information
- Internal data security policies (in corporate environments)
Since we spend much of our private and professional lives online, proper mobile security hygiene is critical to ensuring sensitive data doesn’t fall into the wrong hands. Sadly, making this happen is becoming increasingly challenging as the number and severity of threats grow.
Common Mobile Security Threats To Beware Of
Hackers use various strategies to access and steal personal data. The most common ones are outlined in the following table:
Many of these attacks can be further divided into subcategories according to the exact tactic used by a malicious party. For example, common types of phishing include:
- Spear phishing: Specifically tailored to an individual instead of mass-sending the same fraudulent message
- Vishing and smishing: Performed over a phone call or SMS instead of an email
- Whaling: Aimed specifically at executives and high-income individuals
Because of these nuances, you need to identify and understand the attack types you might be susceptible to and set up mobile security accordingly. Still, there are a few universal aspects of security to focus on.
5 Components of Effective Mobile Wireless Security
An effective mobile security strategy should cover the following elements:
- OS security: Besides leveraging the security features of commercial operating systems like iOS and Android, you can use mobile devices with a hardened OS that eliminates vulnerabilities like trackers and application sideloading.
- Application security: All apps you download should come from trusted developers and official sources. If an app handles sensitive information, you must make sure it implements adequate security measures (e.g., advanced encryption).
- Network security: From local Wi-Fi to cellular carrier networks, your connections must be secured through measures that prevent interceptions, surveillance, and data exfiltration.
- Endpoint security: Anti-malware software, device management tools, and various other security measures are crucial for protecting both personal and business devices (especially if network providers use lackluster security).
- Access controls: Whether you use shared devices or worry about your device getting stolen, you should protect the device with strong authentication measures to prevent malicious parties from accessing your data.
Mobile Security Best Practices To Follow
To check all of the above boxes and prevent unauthorized access to your data, you can take these steps:
- Use strong authentication
- Stay on the lookout for social engineering
- Limit app permissions
- Secure your home network
- Choose your cellular carrier wisely
1. Use Strong Authentication
In the U.S., 85% of security breaches happen as a result of weak authentication. This means that a few simple practices can prevent the vast majority of attacks.
The first and most obvious one is to use strong passwords. This includes:
- Combining uppercase and lowercase letters, numbers, and symbols
- Avoiding names, important dates, and other personal information in passwords
- Using a different password for each account
- Avoiding sequences (e.g., “1234” or “asdf”)
Another common and effective way to protect your account is multi-factor authentication (MFA). You should have at least two authentication layers, which can include:
- SMS-based one-time passwords
- Authenticator apps
- Magic links
High-risk individuals who need to protect critical data can even consider hardware tokens—physical security keys used for authentication.
Consider using a reputable password manager: open-source options like Bitwarden and KeePassXC have strong audit histories, and well-designed password managers use end-to-end encryption that the provider cannot decrypt.
For high-risk users, locally-hosted managers (KeePassXC, Strongbox) avoid even the small risk of provider-side compromise. Avoid reusing passwords across accounts; that's a worse risk than any well-audited password manager.
2. Stay on the Lookout for Social Engineering
Phishing attacks can be highly sophisticated, so spotting the signs of fraudulent communication is challenging if you don’t pay attention to seemingly insignificant details.
If you’re not sure where to look, refer to this table for common red flags:
Even if you don’t notice any of the above but are unsure of an email or message’s legitimacy, don’t take action immediately. Reach out to the sender through another channel to confirm the validity of the received correspondence.
3. Limit App Permissions
Each app needs specific permissions to function, but many of them go overboard. While this is mainly done for benign (but still invasive) purposes like marketing, it creates vulnerabilities that malicious parties could exploit.
Besides downloading apps from trusted sources, review the requested permissions and approve them manually. Most operating systems let you do this when you first install the app, though you can also manage permissions from the device’s settings.
Be particularly careful about sensitive permissions like:
- Location
- Camera
- Microphone
Only allow such permissions if the app genuinely requires them to work properly. Even then, make sure to review app permissions regularly and block any unnecessary ones.
4. Secure Your Home Network
Unsecured networks can cause far more serious issues than other users freeloading on your network. It opens doors for malicious parties to hijack your network and cause various issues like:
- Spying on your communication
- Intercepting traffic
- Installing malicious software on devices
To avoid this, change the default network credentials as soon as you set up the router. Follow the same password best practices to secure your Wi-Fi network, and make sure Wi-Fi Protected Access (WPA) is enabled to encrypt the data transmitted over the network.
5. Choose Your Cellular Carrier Wisely
Besides Wi-Fi, you likely use cellular data throughout your day. Unfortunately, you have far less control over its protection than you do with a home network. You need to rely on the carrier’s security measures, which are almost exclusively weak if you’re using one of the popular commercial telcos.
Major carriers are common targets of data breaches, and they have all suffered quite a few attacks over the years. One of the most recent and severe ones was the Salt Typhoon—a sophisticated attack that targeted all major U.S. telcos and infiltrated entire networks over a span of two years.
This shows that commercial carriers are severely underprepared for capable attacks. And yet, so much sensitive data is transferred through them daily.
Worse yet, big telcos routinely engage in subscriber tracking and extensive data collection, which includes data that isn’t necessary for service provision. While their security policies might vary, they all collect plenty of data, such as:
- Location data
- SIM data
- Device ID
- Demographic data
This information is sold to third parties, mainly for marketing purposes. It’s also stored without adequate protection, letting capable hackers access it too effortlessly.
To avoid such practices and their many risks, it’s best to step away from big telcos and opt for a secure phone service. If you’re unfamiliar with such options, you should check out Cape.
Cape: The Carrier Built for Security and Privacy
Cape is a privacy-first mobile carrier designed to keep your communications safe from surveillance and misuse. Unlike traditional cell phone plan providers, our business model centers around providing you with premium and secure call, text, and data, rather than harvesting and selling your information.
Our service is built from the ground up with privacy and security at its core, offering unique features like:
Privacy & Security Feature | Description |
Cape doesn’t ask for your name, address, or Social Security number. We only collect the information necessary to provide service, and we retain that information for the minimum amount of time possible. | |
Traditional carriers rely on a fixed International Mobile Subscriber ID (IMSI) to connect your device to cellular networks. This is a vulnerability that lets carriers, advertisers, and bad actors identify and track your device. Cape lets subscribers automatically rotate their IMSI every 24 hours, making it infinitely more difficult to track you or your device. | |
Many services ask for your phone number, but sharing it exposes you to spam, scammers, data brokers, and a variety of other risks. VoIPs, on the other hand, don’t work with 2FA, cost extra, and aren’t encrypted. With Cape, you get two free additional SMS/MMS lines that are middle-to-end encrypted. | |
Most U.S. carriers store your call and text metadata for years, sometimes indefinitely. Cape is built to forget, so call data records (CDRs) are deleted after just 24 hours. | |
Cape nullifies the threat of SIM swapping by completely removing humans from the loop. During signup, you receive a 24-word phrase that generates a private key tied to your number. This effectively means that no one (but you) can move your number to a new carrier or device, not even Cape. | |
Legacy network protocols, like SS7, leave you vulnerable to hackers that can track your location, intercept your calls and texts, and steal sensitive information. Cape’s Network Lock relies on a proprietary signaling proxy to verify that your device’s physical location matches the network it’s trying to attach to. If we detect anything out of the ordinary, Cape automatically blocks the connection, nullifying the potential threat. | |
Traditional voicemail systems are outdated, unencrypted, and another security hole bad actors can exploit to gain access to your sensitive information. Cape encrypts all voicemails, ensuring only you can access them. | |
While roaming, your phone connects to local telecom providers to enable service. But, who knows who might be listening on the other end. Cape provides you with peace of mind by routing your traffic through our U.S.-based mobile core, ensuring your identity, data, and communications remain private and secure. |
Ditch Legacy Carriers: Get Cape Today
Cape is a “Heavy” Mobile Virtual Network Operator (MVNO), meaning we own our mobile core and provision our own SIMs. This gives us full control over how accounts are authenticated and what data is collected (and for how long), and is how we are able to provide privacy and security features no other carrier on the market can offer.
Get started with Cape today and enjoy the peace of mind, knowing you are fully protected against scammers, hackers, bad actors, and other mobile threats.
To help protect more than just your phone, we’ve partnered with Proton. As a new Cape subscriber, you can choose between Proton Unlimited and Proton VPN Plus for just $1 for six months.
FAQs
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