The world talks.Zephyrn encrypts.
Zephyrn Securities protects calls, chats, files, and negotiations with strict client-side encryption. Practical for teams. Useless for attackers.
Built for law firms, healthcare teams, startups, and enterprises that need speed without compromising confidentiality, auditability, or client trust.
No credit card · 2 minute setup · Zero server-readable data
Threat model
Servers, sniffers, and leaked backups see ciphertext only, not readable business conversations.
Who it is for
Law firms, healthcare teams, startups, and enterprises handling legal, clinical, and strategic data.
Outcome
Lower breach exposure, stronger client trust, and communication workflows that stay fast.
Aim
Make privacy default
We are building communication infrastructure where encryption is always-on, not optional, and trust does not depend on policy pages.
Vision
Private internet era
Calls, files, and negotiations should remain confidential by architecture, whether the user is a solo lawyer or a fast-growing enterprise.
Agenda
Ship practical security
Real-time encryption, low overhead, clean UX, clear admin controls, and measurable risk reduction for teams handling sensitive communication.
Why It Matters
Most communication tools are surveillance with a friendly UI.
91%
of data breaches start with unencrypted communications
$4.9M
average cost of a single enterprise data breach in 2024.
0 bytes
of your data that Zephyrn can access. Architecturally impossible.
Lawyer strategy notes. Patient records. Deal terms. Product roadmap. If that data is readable at any intermediary layer, you do not control your business risk. Zephyrn Securities was built to end that.
7f3a9c2b4e0d8a11f2d4c6b8a0
AES-256/GCM · Encrypted client-side · Key never leaves device.
Zero Knowledge by Design
Mathematically impossible for Zephyrn to read your data. Not a policy — a proof.
Encrypted packets/sec
14,847
Sub-2ms encryption overhead. Your calls stay crystal clear.
256
bit encryption key length
The same standard used by NSA-approved systems.
Keyspace: 2^256 possibilities
Brute-force cost: computationally impractical
Mode: AES-GCM (confidentiality + integrity)
Security posture snapshot
Designed for regulated workflows where legal, financial, and patient conversations need provable confidentiality.
Without Zephyrn
Phone → Server (reads everything) → Recipient
With Zephyrn
Phone → Encrypt → Server sees 7f3a9c██████ → Decrypt → Recipient
Emotional reality check
One leak can cost trust built over decades.
Your litigation strategy, medical notes, term sheets, acquisition talks, and internal investigations are not “just messages.” They are liabilities when exposed. Most teams realize this only after a screenshot circulates in the wrong WhatsApp group.
Sarcasm version: yes, it is absolutely a great idea to discuss patient records in apps built for sticker packs.
Serious version: compliance penalties, client attrition, legal exposure, and reputational damage are all preventable with the right architecture.
Zero-knowledge architecture
Your key never leaves your device.
Key Gen
Device generates AES-256 key locally.
Encrypt
Message encrypted before leaving app.
Transmit
Ciphertext only. Server sees nothing.
Server sees: 7f3a9c■■■■■■
Key Exchange
Travels out-of-band.
Decrypt
Recipient device only.
Why this matters
Even if a server is breached, intercepted data remains ciphertext without user-held keys.
Operational benefit
Teams keep speed and usability while materially reducing legal, compliance, and reputational risk.
Trust model
Security comes from architecture, not policy text. If we cannot decrypt, nobody can request plaintext.
AES-256/GCM
Military and government standard. The strongest symmetric encryption available.
Authenticated encryption for confidentiality and tamper resistance.
Zero Knowledge
We have zero technical ability to read your data. Not a promise — a mathematical constraint.
No plaintext retention at transit or storage boundaries.
On-Device Keys
Keys are generated and stored on your device only. Never transmitted to or stored on our servers.
Ownership and control stay with the communicating parties.
No Backdoors
No master key. No override. No exceptions. If we cannot read it, no government can compel us to produce it.
Removes centralized decryption failure points by design.
How Zephyrn works in practice
Workflow
- 1. User initiates call/chat/file action from app client.
- 2. Data is encrypted on-device before transit.
- 3. Relay layer handles transport only, never plaintext.
- 4. Recipient decrypts locally with the right key context.
Security doctrine
- No master key, no silent backdoor, no privileged decrypt path.
- Cryptographic controls designed for audit and verification.
- Operational model minimizes breach blast radius.
- Trust is anchored in implementation, not marketing claims.
Starter
₹999/month
- • Up to 5 users
- • 1-to-1 encrypted calls and messages
- • 10MB file transfers
- • Email support
Professional
₹4,999/month
- • Up to 25 users
- • Group encrypted calls
- • Unlimited file transfers
- • Admin dashboard
- • Audit logs
- • Priority support
Enterprise
Custom pricing
- • Unlimited users
- • On-premise deployment
- • Dedicated security engineer
- • Custom SLA
- • Compliance reporting
Your conversations deserve better.
Join the waitlist. We're onboarding teams now.
No credit card. Cancel anytime. Your data stays yours.