Introducing
Pioneering Ultrasonic Authentication Technology
Empowering service providers with next-generation security and usability. Secure seamlessly with sound.
Our vision and mission
Everlink is a Cyber Security company redefining digital security by pioneering ultrasonic authentication - a new, passive and powerful factor in the fight against cyber threats.
Our mission is simple yet ambitious:
To make the digital world more secure and frictionless using everyday devices and ultra-intelligent software.
With deep expertise in the physics of ultrasound and its characteristics, we’re engineering software-based security that’s invisible, unphishable, and instantly deployable - transforming how users and systems verify trust.
Why ultrasound?
Security at the Speed of Sound
Ultrasound enables an entirely new security layer - room-bound, invisible, and inherently resistant to interception, relay and cloning.
It is not just a novel channel - it’s a high-integrity proof of presence that turns sound into trust.
Harder to Phish, Clone, or Relay
Ultrasonic keys are time-bound and physically constrained. They can’t be reused.
Frictionless for Users
No scanning, typing or tapping. Authentication occurs silently and instantly using speakers and microphones.
Deploys Anywhere, Instantly
100% software. Delivered as lightweight SDKs that integrate directly into apps, devices or platforms.
SDKs Built for Seamless Integration
Our ultrasonic authentication platform is delivered as a suite of powerful software SDKs - designed for effortless integration into existing security systems, apps and environments.
Our products
Customised SDKs
Fully adaptable to partner-specific requirements
Lightweight
Minimal compute requirement and battery impact
Deploys Anywhere, Instantly
Cross-platform - Web, Mobile, IoT, iOS or Android
Where we work
Solving Cybersecurity’s Biggest Challenges
MFA & Identity Systems
Making multi-factor authentication attack resistant and easier.
Authentication Apps
Improves app security by confirming the user is really there.
Defence & Identity
Quickly confirms friendly identities nearby, accurately without risk of spoofing.
Network Access
Creates a security layer that only grants access when in a physical location.
Secure Entry & Locationing
Access and locate users onsite securely, passively with ultra-accuracy.
Events & Facilities
Confirms who’s in a space in real time - for safer access, networking, or location-based features.
Contact Us
Interested in working together? We’d love to discuss opportunities to use our technology. Fill out some info and we will be in touch shortly.