Core Features

We collect the minimum amount of data needed to provide you with service, and store it for the shortest amount of time possible. And, we never sell your data.

Your International Mobile Subscriber ID (IMSI) is a fixed identifier that networks (and anyone listening) can use to track your device over time. Cape automatically rotates your IMSI every 24 hours to protect you from persistent tracking.

Your plan includes 2 additional middle-to-end encrypted SMS lines at no extra cost. Unlike VoIP lines, these are real phone numbers that don’t get blocked by most 2FA systems.

SIM swaps typically happen when a carrier rep is tricked or bribed into porting your number to the attacker’s device. With Cape, only you can transfer your number to a new device using a 24-word phrase generated locally on your device. Cape never sees or stores it.

Call and text metadata can reveal who your closest relationships are, where you live, and your daily routine. Most carriers retain and monetize that data for years. At Cape, we delete your call and text logs after just 24 hours.

Voicemails can contain sensitive information like personal messages, OTPs, or account details. Most carriers store them on unencrypted, legacy systems. Cape encrypts each voicemail on arrival using a key that lives only on your device.

Legacy SS7 infrastructure can be exploited by attackers to intercept your calls and texts, or track your location. Cape prevents SS7 and other signaling attacks by verifying that your device’s network attachment matches its physical location. Mismatches automatically get blocked.

When you roam abroad, your traffic touches foreign carriers that may be compromised. With Cape, your traffic is routed back through our US-based mobile core, allowing you to access all of Cape’s protections, even when you’re traveling.