Speak and message without being intercepted
Cipher is a hardened smartphone that encrypts every call and message end-to-end and defends the device itself against tracking, IMSI-catcher attacks and baseband exploits.
Lawful use only. This product is supplied for lawful security, protective, investigative, and authorised monitoring use. You are responsible for ensuring that purchase, possession, deployment, recording, tracking, and monitoring comply with all applicable laws in your jurisdiction.
A hardened instrument for conversations that cannot be intercepted.
Executive, legal and investigative conversations are increasingly targeted by IMSI catchers, baseband exploits and app-layer compromises. Standard privacy apps encrypt the message but leave the phone, radio stack and identifiers exposed.
Cipher combines AES-256 encrypted voice and messaging with hardware and baseband hardening: dynamic IMEI, IMSI-catcher detection and blocking, secure boot, TPM and anti-tamper protection — a device-level control, not just an app.
Executives, legal counsel, investigative journalists, security consultants and any operator whose interception risk exceeds what a consumer phone with a privacy app can absorb.
- AES-256 + Twofish end-to-end encryption with Diffie-Hellman 4096-bit key exchange — an audited cryptographic stack, not a re-skinned messenger.
- Firewall Baseband 2.0 with real-time IMSI-catcher detection and automatic connection blocking.
- TCG-compliant TPM, cryptographically verified secure boot, screen-removal detection and environmental fault protection.
- Dynamic IMEI rotation to prevent long-term device tracking across networks.
- Hardened Android build with disableable cameras, multi-mic ANC and irreversibly integrated flash to resist chip-off recovery.
- Lifetime product support from operators — deployment, key management and operational-security guidance.
What Cipher is designed to protect — and what it isn’t.
Real-world protection depends on the discipline of both parties, the SIM and network in use, and how the device is handled. This matrix reflects what the platform is built to defend against, not a guarantee against every adversary.
Datasheet.
Cryptography
SPEC · 01Hardware Security
SPEC · 02Hardware
SPEC · 03Connectivity
SPEC · 04Physical
SPEC · 05Where it operates.
Executive protection
Board-level conversations and M&A discussions cannot afford interception. The CIPHER protects voice, messaging, identity, and the device itself simultaneously.
Field operations
Operating in hostile environments where local infrastructure may be compromised. Dynamic IMEI prevents tracking, the baseband firewall blocks targeted exploits.
Source protection
Journalists and investigators communicating with sensitive sources need protection beyond app-layer encryption. The CIPHER hardens the device end-to-end.
BOUGHT IT ONCE. SUPPORTED FOREVER.
Every purchase includes product guidance from people who know the equipment, from setup questions through practical troubleshooting.
Available in pre-configured kits.
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Questions answered.
What is the Sentiras CIPHER in simple terms?
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The Sentiras CIPHER is a hardened smartphone designed for sensitive voice and messaging operations. It combines encrypted communications with device-level protections rather than relying only on an app. This makes it a security tool for higher-risk users, not a mainstream consumer phone.
How does the CIPHER protect communications end to end?
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The Sentiras CIPHER uses AES-256 and Twofish for encrypted voice and messaging with Diffie-Hellman 4096-bit key exchange. It is built to protect both message content and session establishment across mobile and WLAN connectivity. Proper setup and disciplined operational use are still required for best security outcomes.
Can CIPHER detect IMSI catchers and fake towers?
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The Sentiras CIPHER includes real-time IMSI catcher detection with blocking capability. This helps reduce exposure when suspicious base stations attempt attachment. It is a risk-reduction control, not a guarantee against every telecom threat.
How is CIPHER different from privacy apps on a normal phone?
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The Sentiras CIPHER adds hardware and baseband hardening on top of encrypted messaging and calls. Standard apps may protect content while leaving the host device and radio stack more exposed. CIPHER is intended for users who need device-level and communications-level controls together.
Who is the right buyer fit for the CIPHER?
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The Sentiras CIPHER is typically suited to executives, legal teams, investigative personnel, journalists, and security professionals with elevated interception risk. It may be excessive for casual personal use. Buyer fit depends on threat model, operational discipline, and policy requirements.
What are lawful-use and compliance requirements for encrypted phones?
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The Sentiras CIPHER must be operated in accordance with local telecom, encryption, and data-retention laws. Buyers should validate SIM-registration, import, and cross-border communications rules before deployment. Sentiras positions the platform for lawful protective communications only.