What’s the Most Secure eSIM for Business Use? Top 4 Options

The overall security of an eSIM (digital SIM card) largely depends on the carrier. Legacy infrastructure, poor data policies, and weak protections expose your eSIM and the entire device to risks. This is particularly concerning if you’re using your eSIM for business. Sensitive data can be exposed, resulting in financial loss, reputational damage, and long-term vulnerabilities.

To prevent interception, leaks, and breaches, it’s crucial to find an eSIM that offers security and privacy, but with so many available options, selecting the best one can be overwhelming.

What’s the most secure eSIM for business use? In this guide, we’ll provide the answer by reviewing several providers and their features, potential drawbacks, and pricing.

Why Are eSIMs a Convenient Option for Business?

eSIMs offer unique advantages that make them convenient for business use, including:

• Stable connection when roaming: eSIMs offer unmatched flexibility and convenience when you’re travelling internationally. Instead of purchasing local SIM cards or expensive roaming packages, you can remotely buy a local eSIM plan and ensure a stable connection from the moment you land. For businesspeople, this means an ongoing, uninterrupted connection regardless of their location.
• Quick setup: Setting up an eSIM, whether you’re in the United States or abroad, takes a few minutes and doesn’t require a carrier’s assistance. The entire process is completed remotely.
• Multi-line convenience: Thanks to eSIMs, you no longer have to carry a work and a personal phone, or constantly switch physical SIMs if you don’t have a dual-SIM card. eSIMs can store multiple profiles, allowing you to easily manage work and personal life.
• Improved physical security: eSIMs can’t be stolen or lost, as they’re embedded into your mobile device. They’re also less susceptible to physical damage; they can’t be scratched or bent.

What To Look For in a Secure eSIM Provider for Business

Every eSIM, regardless of the provider, offers convenience and flexibility due to its remote management and multi-profile support. A high level of security isn’t a built-in feature, so to get a truly secure eSIM, you need to know what to look for in a provider. Below is a list of factors you should focus on:

• Data handling practices: A secure provider focuses on collecting as little information as possible from you to reduce the risk of breaches and leaks.
• Privacy policies: The eSIM provider should provide detailed explanations of how your information is collected, stored, and shared to ensure complete transparency.
• Reliable infrastructure: The provider should leverage an advanced and secure infrastructure that minimizes exposure to threats and protects your data.
• Additional security features: Ideally, the chosen eSIM provider should offer additional features that enhance your security and privacy. These could include secure authentication, enhanced signaling protection, or encryption.

What Are the Most Secure eSIM Providers for Business Use?

To save you time and effort, we’ve analyzed dozens of eSIM providers and shortlisted the best and most secure options for business use:

1. Cape
2. Saily
3. Holafly
4. Yesim

1. Cape

Cape is a mobile carrier that prioritizes privacy and security, and works only on eSIM-compatible devices. The key difference between Cape and traditional carriers is that Cape runs on its own cloud-based infrastructure, offering the following benefits:

• Maximum control over data collection, storage, and handling for enhanced privacy and minimized exposure
• Robust authentication that confirms your identity and ensures you have the right permissions
• Strong policy enforcement to determine what devices can do on the network and how they interact with others

Unlike many mobile virtual network operators (MVNOs) that use eSIMs provisioned by the host MNO, Cape issues and manages its eSIMs. This gives the company full control over authentication and profile, using identifier management to prevent misuse, data exposure, and interception.

To offer a high level of privacy and security, Cape also:

• Collects minimal data: Cape only requires your phone number to provide services.
• Offers protection against network-level threats: Cape offers a comprehensive range of features to shield users against SS7 attacks, IMSI catchers, SIM swapping, and other threats that could compromise sensitive information.
• Ensures safe roaming: Cape ensures you can safely conduct business from various locations, from Europe to Japan. When you’re abroad, Cape routes sensitive information, such as texts and calls, through its own network to prevent potential breaches via the foreign network.

If you want to learn more about Cape for business, fill out a contact form and send a message to the Cape team.

2. Saily

Saily is an eSIM provider owned by NordVPN. Although it focuses on eSIM for international travel, Saily offers a dedicated eSIM solution for businesses to ensure all employees within a company are always connected.

The company’s eSIM app for business provides the following:

• Flexible data plans: Choose from various data allowance and duration options for your specific destination to ensure you don’t overpay for your plan.
• Automatic setup and activation: Activate your eSIM with a single tap and top up as needed to stay connected.
• 24/7 customer support: Reach out to Saily’s 24/7 customer support in case of issues or uncertainties.
• Coverage in over 200 locations: Get plans for specific countries or regions or sign up for a global package.

Saily doesn’t state prices for its business plans because they depend on your requirements; to get an estimate, you’ll need to reach out. The plans themselves sound appealing, but what about the company’s privacy and security?

The level of security is solid because Saily offers additional protection features, such as:

1. Virtual location: Choose from over 115 worldwide locations to browse more privately or view country-specific content
2. Web protection: Block malicious websites and limit online trackers
3. Ad blocker: Block ads to reduce distractions while browsing

As for privacy, Saily doesn’t focus on minimal data collection. In fact, it collects extensive user information, including their names, email addresses, device identifiers, and network usage. This may be a deal-breaker for privacy-conscious users.

3. Holafly

Holafly is an eSIM provider with a unique solution that companies and their employees can rely on when traveling: Holafly Corporate.

This solution enables company owners and leaders to keep their teams connected, regardless of their location. Below are the key benefits of Holafly Corporate:

Since packages are customizable, prices aren’t stated upfront. To get more info, reach out to Holafly.

In terms of security, Holafly’s website mentions the following:

• Core network termination: Your data sessions are completed within a secure infrastructure.
• Encryption in transit: Your information is encrypted while it travels through networks.
• Separation of customer identities and network identifiers: Your privacy and security remain intact due to minimized risk of tracking and identity exposure in case of breaches.

Holafly would be an ideal solution for many individuals who prioritize privacy and security if it weren’t for its extensive data collection and sharing policy. The company collects and stores your personal information, as well as data on your device and website usage. It may share this information with over a dozen third parties, potentially creating opportunities for data breaches and leaks.

4. Yesim

Yesim is an eSIM provider based in Switzerland, offering mobile data plans for both tourism and business purposes. Besides individual plans, Yesim offers OneBalance: a corporate eSIM management platform that simplifies connectivity among team members.

Some of the benefits OneBalance offers are:

• Cost efficiency: OneBalance helps you save on roaming fees and purchase plans that perfectly suit your team’s needs.
• Centralized control: You can monitor spending, adjust allocation, simplify accounting, and distribute eSIMs across your team from a single location.
• Global coverage: OneBalance offers a reliable connection in over 200 locations, with optional add-ons for rare destinations available in the app.
• Customization: You can choose how much data you and your team need to avoid incurring unnecessary expenses.

As pricing depends on the selected plan configurations, Yesim requires you to reach out to learn more about expenses.

When it comes to security, Yesim incorporates virtual private network (VPN) technology into its eSIMs to add an additional protective layer and protect user privacy. Other than this, the company doesn’t provide details on its infrastructure or security protocols that could defend your eSIM from external threats.

Another potential drawback is the company’s privacy policy. While the policy discusses the types of collected data, it doesn’t offer details on storage and sharing policies, and the lack of transparency could deter potential users.

Which eSIM Provider for Business Use Should You Choose?

While each eSIM provider on our list has something different to offer businesses, one option stands out for organizations that prioritize security and privacy. Our top recommendation is Cape because it:

• Enforces minimal data collection policies
• Clearly states how long it stores specific information
• Offers additional options for shielding security and privacy, from powerful encryption to advanced signaling
• Operates on its own independent network

All these functionalities are combined with excellent coverage and unlimited worldwide 4G and 5G data. Depending on the location, Cape also includes unlimited text and data in its plan, so that businesses of any size get a secure and uninterrupted connection worldwide, even without immediate internet access.

Meet Cape: The Secure Carrier Designed for Today’s Threats

We share the most intimate details of our everyday lives with our cell phones. In order to stay connected, our cell phones share that information with local cell networks, and in turn, those cell networks share our data with each other.

While this system is what makes connectivity possible, it was also built with interoperability as its priority, rather than security. The global cell network is vulnerable to a number of threats, as seen through headlines about major carrier data breaches we see time and time again. When major carriers aren’t losing our sensitive personal data in breaches and hacks, they’re actively selling it to ad networks, data brokers, and third parties.

At Cape, we believe that privacy and security shouldn’t have to be sacrificed for connectivity. That’s why we built our service with privacy principles and security features at its core, including:

1. Minimal Data Collection

Cape eliminates the risk of your sensitive data falling into the wrong hands by not even asking for it. When you make your Cape account, we don’t ask for your name, address, or SSN. We only collect the information that’s necessary to provide the service, and we retain it for the least amount of time possible.

2. SIM Swap Protection

During account creation, you receive a unique 24-word phrase that generates a private key tied to your phone number. This pass phrase is required to move your number to a new device or carrier. Nobody else, not even us at Cape, has access to the phrase, meaning there’s absolutely no way for bad actors to transfer your number to their device, effectively nullifying the possibility of SIM swapping.

3. Disappearing Call Logs

Your phone stores an incredible amount of data, which can be accessed through call and text records. Most mobile carriers store your call and text metadata for years, which can easily fall into the wrong hands.

Cape is built to forget, meaning we delete Call Data Records (CDRs) after just 1 day, ensuring nobody can see who you texted or called, track where the communication took place, or access the sensitive information within CDRs.

4. Identifier Rotation

All SIM cards are accompanied by International Mobile Subscriber IDs (IMSI). These function as unique identifiers devices use to register with cellular networks. Traditional telcos assign fixed IMSIs to user accounts, meaning the carriers, advertisers, hackers, and other bad actors can exploit them to identify and track your device.

Cape patches this security hole by allowing you to automatically rotate your IMSI every 24 hours. In practice, this means you appear as a different subscriber every day, making it much more difficult for anyone to identify your device or track your movements.

5. Last-Mile Encrypted Texting

Most people receive One-Time Passwords (OTPs) through unencrypted SMS messages, leaving their most sensitive data and accounts vulnerable to a variety of threats.

Cape allows you to route all SMS/MMS messages through the Cape app, ensuring that every message you receive is middle-to-end encrypted. The messages are then securely decrypted within the Cape app, ensuring only you can see and read their contents.

Note: This feature is only available on iPhone. Android coming soon.

6. Secondary Numbers

Are you tired of spam messages from brands, phone call surveys, and scammers trying to trick you into sharing sensitive information over the phone? The reason why most people are exposed to these nuisances is that we are often required to share our phone numbers with retailers, websites, apps, and service providers.

While messages and phone calls can be annoying, what’s worse is that your number can easily become a target for data brokers and bad actors. That’s why many people turn to VoIP numbers as secondary lines. VoIPs are a decent option, but they don’t fully solve the issue—they are not encrypted, you can’t use them for 2FA, and they’re an additional cost each month.

When you sign up for Cape, you get two free additional SMS/MMS lines that are middle-to-end encrypted. This allows you to use Secondary Numbers for online shopping, signing up for services and discounts, and receiving secure OTPs, while your primary phone number is reserved for friends and family.

7. Network Lock

Traditional cellular networks were designed for interoperability, not security. Outdated and legacy network protocols like SS7 have vulnerabilities that allow attackers to hack in and track your location, intercept your calls and texts, and steal sensitive information.

Cape’s Network Lock uses a proprietary signaling proxy to verify that your device’s physical location matches the network it’s trying to attach to. If anything looks suspicious, like a mismatched location, we block the connection.

8. Encrypted Voicemail

Voicemails can reveal more than you think, from personal messages to authentication codes, yet most voicemail systems are outdated and unencrypted.

Cape encrypts your voicemails so that only you can access them.

9. Secure Global Roaming

To access phone service while traveling abroad, your phone typically needs to connect to local telecom providers. The trouble is, there’s no guarantee all networks are secure, and not every government treats privacy the same.

Cape doesn’t leave anything to chance. We let you route traffic through our U.S.-based mobile core, so you can safely use international data roaming without exposing your identity or sharing sensitive data or communications with foreign carriers.

With Cape, you get up to 15 GB per month of international roaming, included in your monthly plan.

Get Started With Cape Today

If you’re ready to make a switch from legacy telcos to America's privacy-first mobile carrier, visit cape.co/get-cape and test out Cape in practice for just $30 for your first month.

In addition to all the features listed above, you can further enhance your privacy and security with Proton. Our partnership with this technology leader allows you to get Proton Unlimited or Proton VPN Plus for only $1 for the first six months.