About Seald Healthcare
Our Mission
To keep patient data protected wherever it is stored, accessed, or shared, whether by people, applications, vendors, or AI agents. Healthcare organizations should never lose control of patient data because it moved beyond their network or into an AI workflow. Our mission is to make record-level security the default across healthcare.
Our Vision
A healthcare system where patient data can move freely and securely, and where AI can be adopted without putting patients at risk. Where a breach, or an AI agent gone wrong, exposes encrypted records instead of patients. Where security follows the data itself.
What We Built
Three Foundations, One Security Model
Record-Level Encryption
Each patient record is encrypted individually, so a compromised system does not expose the records inside it.
Zero-Knowledge Key Management
Decryption authority is held separately from the data. Seald Healthcare manages the key infrastructure but cannot decrypt your PHI.
Marlow, the AI That Operates Seald Healthcare
Turns your contracts and security requirements into record-level policy, watches decryption activity in real time, and stages changes for your approval.
How Healthcare Security Has Evolved
AI Changed What Security Has to Protect
Each era of healthcare IT put security in a new place.
In the AI era, it has to be the patient record.
Perimeter Era
Protect the Network
Firewalls and access controls kept patient data inside known systems, handled by known people.
Cloud Era
Protect the Infrastructure
Cloud providers secured the platforms. Healthcare organizations stayed responsible for the data itself.
AI Era
Protect the Record
AI agents, applications, and vendors now act on PHI with legitimate access. Security has to stay with each patient record.
The Breach Problem by the Numbers
1B+
Records exposed across 7,400+ breaches since 2009
$6.64M
Average cost of a healthcare data breach in 2026, the highest of any industry
289M+
Individuals affected by healthcare breaches in 2024 alone
80%+
Of stolen patient records are taken from third-party vendors, not providers directly
Who We Serve
Built for Every Organization That Handles Patient Data
From health systems to AI platforms, Seald Healthcare applies the same record-level security model to every organization that creates, processes, or shares PHI.