Can eSIMs Be Hacked? eSIM Safety and Hacking Risks

Luis Rafael
Oct 06, 2024

The quick rise of eSIM technology has made mobile connections easier. With just a tap, you can switch providers, manage multiple numbers, and activate service without a physical SIM card. But this convenience brings a key question: can eSIMs be hacked?

In today’s digital age, it’s important to know how eSIMs fit into cybersecurity. Learn more about this technology to sort facts from myths and find any possible risks.

image-24.webp
In this article:

  • What is an eSIM? Understanding the Basics
  • Can eSIMs Be Hacked?
  • SIM Swap Attacks: Are eSIMs Safer?
  • Are eSIMs Immune to Cloning and Physical Tampering?
  • eSIM Privacy Concerns: Can You Be Tracked?
  • Best Practices for Securing Your eSIM: Tips to Stay Safe
  • eSIM vs Physical SIM: Which One Offers Better Security

What is an eSIM? Understanding the Basics

eSIM stands for embedded SIM and is a form of embedded SIM. Unlike typical physical SIMs, which users can remove from a phone, the device’s hardware includes an eSIM. As a result, they allow users to swap network providers without having to physically change any card.

A-futuristic-sleek-smartphone-in-the-1024x585.webp
One of the main advantages of using an eSIM is convenience. For instance, one can turn on mobile service by scanning a QR code or using an app. This process is significantly faster than waiting for a new SIM card in the mail. Therefore, this has made the use of eSIMs very well-liked among frequent travelers and people who change networks quite often. Additionally, an eSIM saves space in the device, which means manufacturers can use that space to fit other hardware, making phones sleeker and more efficient.

As with all new technologies, though, questions have come up about the safety of the technology. Various attacks have targeted traditional SIM cards. These include switching and copying. So, can eSIM be hacked or does it offer a higher level of protection?

Can eSIMs Be Hacked?

Yes, eSIMs can potentially be hacked, but the risk is relatively low due to their robust security features.

A common myth is that hackers can’t get into eSIMs. However, like any digital technology, eSIMs are not completely safe from cyber threats. The truth is, hacking an eSIM is much more difficult than accessing a physical SIM card. This is because of the advanced encryption and security built into eSIMs.

A-conceptual-image-of-a-hacker-attempting-a-SIM-swap-attack-on-a-physical-SIM-card.webp
eSIMs remove the risks of switching or stealing physical cards. Nevertheless, digital weaknesses remain. Cybercriminals might find a weakness in some network provider’s system and hack eSIM users. That said, it would require advanced hacking skills and access to telecom networks. Still, can eSIM be hacked through sophisticated techniques? Indeed, it remains a concern for some users.

SIM Swap Attacks: Are eSIMs Safer?

The most common type of SIM-related hacking is called a SIM swap attack. In a typical attack, a hacker tricks a mobile network provider into transferring a victim’s phone number to a new SIM card controlled by the hacker. This allows the hacker to bypass two-factor authentication and gain access to important accounts.

So, can eSIMs be hacked through SIM swaps? While eSIMs have stronger security measures that make SIM swaps more difficult, they are not completely immune. The eSIM is embedded in your phone’s hardware, and activating the service requires additional approval. Hackers would need more than just personal information; they would also need access to your device and permission from your network provider to activate the eSIM remotely.

That said, no system is entirely safe. eSIMs reduce the risk of SIM swap attacks, but it’s still important to use strong passwords and enable two-factor authentication through apps instead of SMS.

Are eSIMs Immune to Cloning and Physical Tampering?

Copying physical SIM cards posed a serious threat. A hacker could duplicate SIMs and then catch calls or messages. However, it is much reduced in eSIM.

The device embeds eSIMs directly. Consequently, users cannot remove and copy them in the traditional sense. Also, eSIMs combine their activation and settings with one-of-a-kind safety rules. These include protection and remote approval. Thus, it literally becomes impossible for hackers to copy the eSIM remotely or to physically change it.

Though less of a concern now, users should know this: can eSIM be hacked through digital attacks on the software? Perhaps, it might let a hacker, with access to the eSIM profile management system, change the eSIM’s settings. However, this attack would require access to both the device and network provider. Therefore, it is much more complex than traditional SIM copying.

image-4-5.webp

eSIM Privacy Concerns: Can You Be Tracked?

Another often-asked question is whether an eSIM does make it easier to be tracked. In reality, an eSIM is no more vulnerable to tracking than a SIM card.

It usually occurs through IMEI, the International Mobile Equipment Identity. It is a unique ID for each mobile device. Regardless of whether a device has a SIM card or an eSIM, this number identifies it on the network. So essentially, moving to eSIM doesn’t raise any chances of being tracked.

However, you can do a couple of things to increase privacy when using an eSIM. For instance, using a VPN will hide your location. Additionally, update your device software often to keep the latest updates.

Tips for Securing Your eSIM

eSIMs have many built-in safety features. However, here are some ways to further protect yourself from digital threats:

  • Use Two-Factor Security Checks: Whenever available, use two-factor security checks. In particular, when possible, take advantage of app-based 2FA over SMS-based security checks. It adds extra safety against SIM swap attacks.
  • Install a VPN: This way, it will create a private network that protects your data. Consequently, this makes it hard for hackers to catch sensitive information.
  • Update Your Device Regularly: One of the best ways is that you should always keep your mobile operating system updated. By doing so, this will benefit you by providing the latest updates and safety fixes.
  • Enable Remote Wipe: If you lose or have your device stolen, a remote wipe can erase all data, including your eSIM info.

Ultimately, good practices like these will help you secure your eSIM with minimal risk.

eSIM vs Physical SIM: Which One Offers Better Security?

Both eSIMs and traditional SIMs have pros and cons in terms of safety.

  • Physical SIMs are vulnerable to physical attacks such as SIM switching and copying. In this case, once a hacker has access to your SIM, they only need to insert it into another device to take over your service.
  • You can’t change eSIMs that are inside the phone. The eSIM protects the linked profiles. Therefore, you must verify updates or replacements through the network provider’s system.

Both technologies rely on a network provider’s network for activation and safety. While eSIMs reduce some risks, like SIM switching, can eSIM be hacked in other ways? They’re not immune to all digital threats. Thus, the best way to guard against those attacks is to be vigilant. Always use strong passwords and enable multi-factor security checks whenever possible.

A-close-up-view-of-the-internal-components-of-a-smartphone-1024x585.webp

Feature eSIM Physical SIM
Physical Tampering Risk Low (embedded in the device) High (can be removed and tampered with)
SIM Swap Attack Risk Lower (requires device and carrier access) Higher (can be swapped with social hacking)
Cloning Risk Low (protected by encryption and profiles) Moderate (can be physically cloned)
Tracking Risk Similar to physical SIM (via IMEI) Similar (via IMEI)
Ease of Activation High (remotely activated, no physical card) Moderate (requires physical card insertion)
Security Updates Requires regular software updates N/A (security mainly dependent on the card)

You may also take a look at this detailed article.

A-split-screen-image-comparing-an-eSIM-1024x585.webp