In Part 1, we uncovered why most passwordless strategies fail the moment they hit the clinical floor. Shared workstations, constant user switching, mobile-restricted zones, PPE, and the pace of care make traditional MFA, mobile prompts, tokens, and cameras unworkable in hospitals. Instead of improving security, these tools often fuel workarounds, credential sharing, and identity drift — creating the opposite of zero trust.
In Part 2, we outlined the missing piece that makes passwordless access viable in hospitals: Continuous Authentication and Continuous Access Evaluation. Instead of relying on a single login event, continuous authentication and continuous access evaluation verify who is behind the keyboard throughout the entire session using behavior-based signals. It removes friction, closes security gaps between logins, and aligns with the proposed HIPAA definition of MFA, which recognizes behavioral biometrics as a valid authentication factor.
Together, Parts 1 and 2 established two truths healthcare leaders can no longer ignore:
This final part covers how Twosense operationalizes this model in real hospital environments, what outcomes it delivers at scale, and why continuous, behavior-based authentication is becoming the new standard for secure, passwordless clinical access.
Hospitals operate at the intersection of speed and security. Every authentication delay costs clinicians time with patients, and every shortcut — shared logins, inherited trust, unattended terminals — creates exposure. Twosense eliminates that trade-off.
Twosense deploys as a software-only, lightweight agent that installs on endpoints, including shared workstations and clinical desktops, and continuously verifies user identity invisibly in real time.
The platform works by continuously generating user trust across the endpoint session from start to finish. The Twosense agent activates in the background and passively analyzes each user’s behavior-based signals, such as subtle patterns in their typing cadence and mouse movements. These behavioral characteristics form a passive biometric authenticator that is unique to each user and runs silently at all times. Because it is based on individual behavior, it cannot be shared, stolen, or passed to another user, making it inherently resistant to phishing and credential misuse.
This behavioral “trust score” becomes a live authentication factor and is tied into policy as a “something-you-are” factor for MFA. Throughout a user’s session, their behavior is continuously compared to their profile. This ensures the right user remains in session, satisfying authentication requirements for accessing sensitive systems without interrupting the user with a prompt.
Hospitals don’t need to rip and replace IAM systems. Twosense strengthens existing identity infrastructure with continuous, session-aware identity assurance. Clinicians experience no disruption, and IT gains a maintainable solution with no additional devices to manage.
Most passwordless solutions assume one user per device, stable sessions, and access to phones or hardware tokens. Hospital environments don’t operate that way. Clinicians constantly switch shared workstations, leave workstations unattended, and work in mobile-restricted or PPE-heavy zones.
Twosense succeeds because it continuously verifies identity through behavior-based signals that cannot be shared or stolen. It works invisibly, with no hardware, phones, tokens, or cameras required, making Continuous Authentication uniquely suited to clinical environments.
In late 2024, a major U.S. hospital system faced a breaking point. A 16-character password policy introduced to strengthen security caused failed logins to spike, frustrated clinicians, and overwhelmed the IT help desk. Pass-Through Authentication — often used to mimic a passwordless workflow — was ruled out due to the risk of inherited trust from password replay.
Continuous Authentication delivered measurable results in less than six months.
Rollout scope:
Outcomes within 6 months:
Clinicians reported seeking out Twosense-enabled workstations because they could spend less time authenticating and more time with patients.
From a strategic standpoint, these results translate to meaningful ROI. Saving even ~15 seconds per authentication compounds quickly. For a workforce of 1,000 clinicians, this equates to more than 10,000 hours annually returned to care. Continuous identity logs increase audit readiness, support alignment with the proposed HIPAA MFA Security Rule, and reduce cyber risk by preventing session hijacking and credential sharing.
Read the full Case Study here.
Hospitals adopting Twosense see measurable improvements across three dimensions:
Security
Continuous identity verification throughout the session prevents session hijacking, credential misuse, and phishing attacks that succeed after login. Security teams gain real-time visibility into session integrity and user legitimacy.
Compliance
Continuous access logs strengthen auditability and reduce reliance on inherited trust methods such as PTA. Twosense meets the behavioral biometric factor defined in the proposed HIPAA MFA update, giving hospitals a compliant, software-based path to MFA without introducing friction.
Clinical Efficiency
Passwordless workflows return time to clinicians and reduce IT workload. Eliminating password resets — the number one driver of IT help desk tickets — frees technical staff for higher-value work and reduces burnout on both sides. Continuous Authentication enables leaders to strengthen security and operational resilience while improving patient care delivery.
Healthcare security leaders are navigating a difficult balance point. Cyberattacks continue to escalate, regulatory requirements are tightening, and clinicians are already stretched to their limits. Introducing additional friction is not an option, yet maintaining the status quo creates exposure. The following perspectives reflect how peers are evaluating authentication decisions in this environment.
Security and clinical leadership are aligned on three pressures:
Leaders who have implemented Continuous Authentication report three consistent shifts:
Authentication should not be a daily obstacle between clinicians and patients. It should be a background safeguard — present, reliable, and unobtrusive. Continuous, behavior-based authentication shifts identity from an interruption to an invisible layer of protection aligned to how hospitals actually work.
Twosense enables a passwordless experience that is secure, compliant, and workable across shared clinical workstations — without phones, tokens, or cameras. For hospitals looking to reduce failed logins, cut help desk burden, remove identity friction, and give time back to care, Continuous Authentication is becoming the new standard.