A short, easy interaction—not a complicated formatting exercise.
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Flagship authentication
Make stolen credentials insufficient.
Multidimensional MFA adds patented color-, style- and position-based interaction to passwords, OTPs and passwordless authentication—helping verify the human behind the login.
3 approved patents
11K+ end users
Device-less option
Interaction + context verified ✓
The identity problem
Knowing the credential is not always proof of the human.
Attackers can capture passwords and one-time codes through phishing, malware, social engineering and automated attacks. When access depends only on the captured text, the attacker may possess everything needed to attempt the login.
Rainbow Secure verifies more than what was typed.
What multidimensional means
One small action.
More proof behind it.
A user may do something as simple as underline one character. Rainbow Secure verifies the character, the underline, and the exact position where it was applied. Organizations can add more dimensions only when the risk requires them.
The interaction must match the configured challenge.
AI-assisted monitoring can evaluate access behavior and risk.
Where dimensions apply
Dimensions strengthen the factor and the access journey around it.
Rainbow Secure can add presentation dimensions to a credential and evaluate contextual dimensions around the request. The exact combination is set by organizational policy.
Password
Verify the password text together with the expected color, style and character positions.
Knowledge factor + interaction dimensionsOne-time code
Verify the OTP value and the formatting challenge applied to selected positions.
Possession channel + interaction dimensionsPasswordless code
Use a dynamic code and multidimensional instructions without relying on a reusable password.
Dynamic verification + interaction dimensionsEvery access request
Evaluate device, location, time and behavioral signals before allowing, challenging or restricting access.
Contextual dimensions + policy responseType the correct characters
4 2 7 9 1
- Limited to keyboard characters
- Long passwords are harder to remember
- Captured text may be replayed
VS
Type the code + underline one character
4
2
7
9
1
- The selected character position must match
- The required formatting must match
- More depth without a crazy-long password
Traditional vs. multidimensional
The difference is not more login steps. It is more evidence inside the decision.
Security question
Traditional text-centric approach
Rainbow Secure multidimensional approach
What must match?
A password or code value
Text plus configured interaction and contextual dimensions
What can phishing capture?
Often the complete reusable text or OTP
Captured text may omit required formatting, position and policy context
What does a keylogger record?
Typed characters
Characters, but not necessarily visual formatting and selected positions
How is access context used?
Often separate or limited
Device, location, time and behavior can influence the same decision
What happens when risk changes?
The same factor may still be accepted
Policy can allow, step up, restrict, alert or record
What is reviewable?
Successful or failed login
Authentication, dimensions, context, policy response and activity
Available configuration depth
Seven interaction layers—use only what makes sense.
Rainbow Secure can combine the character with font color, background color, font size, font name, style and formatting position. The organization controls the policy; the user may receive only one simple instruction.
RInteraction
layer
LAYER 01
layer
Character
The password, OTP or passwordless character entered by the user.
Available depth includes up to 17 million font colors, up to 17 million background colors, more than 100 font sizes, configurable fonts and multiple styles. These choices expand the possible interaction combinations; they are not all shown to every user.
Why it is stronger
Security teams gain choices without transferring complexity to users.
Traditional systems often increase burden by demanding longer passwords, frequent resets or another device, app, hardware key, email or SMS step. Multidimensional verification can add evidence inside the interaction the user is already completing.
✓ Less pressure to create very long passwords
✓ Fewer unnecessary password-change demands
✓ Policy can add layers for higher-risk access
✓ Useful when a phone or hardware key is impractical
ILLUSTRATIVE CHOICE SPACE
36Q+
possible choices per character under a configured example
Beyond keyboard characters
Color, background, font, size, style and position can create an enormous theoretical combination space. Actual security depends on the organization’s policy, permitted choices, implementation and risk controls—not on one number alone.
Up to 17M font colors
Up to 17M backgrounds
100+ sizes
Fonts & styles
Simple product experience
Underline one character.
That is all the user needs to do in this example. Rainbow Secure checks the correct code, the underlined character and its exact position. AI-assisted monitoring can separately evaluate behavior and contextual risk.
- 1Click one character
- 2Click underline
- 3Verify
R
Secure Access Gateway
Interactive demo
Underline the third character
AI-aware access
Behavior becomes part of the decision.
AI-assisted monitoring can identify unusual access patterns and help trigger a challenge, restriction, alert or review. This adds risk awareness without asking the user to perform more formatting.
Quantum-ready direction
A complementary human-verification layer.
Multidimensional interaction does not replace post-quantum cryptography. It provides a separate human-verification layer that can work alongside evolving cryptographic standards as organizations modernize.
Actual product screen
From demonstration to deployment
Formatting verification backed by contextual policy.
The production experience evaluates text, color, style and formatting position together with location, device, time and behavior.
✓ Company-controlled policy
✓ Formatting-position verification
✓ Context and behavior
✓ Reviewable activity
Threat resistance
Designed for the gap between a captured credential and a verified human.
Phishing
Captured plain text may not include the required color, style or formatting positions.
Keylogging
Recorded keystrokes do not necessarily reveal formatting and position.
Credential stuffing
Reused credentials face additional multidimensional verification.
Bots & automation
The attacker must reproduce more than a static value.
Account takeover
Location, device, time and behavior can influence the access response.
Shared devices
Device-less verification can support environments where phones are impractical.
Flexible by design
Add multidimensional verification to the authentication method that fits your users.
Password + dimensions
Strengthen familiar password workflows with formatting and contextual dimensions.
OTP + dimensions
Evaluate the code, applied formatting positions and access context.
Passwordless + dimensions
Verify a code and its configured dimensions without a traditional password.
Where it fits
Built for real access environments.
Shared workstations
Healthcare, libraries, schools and operations teams.
Business email
Strengthen access to Microsoft 365 and business accounts.
Customer portals
Add differentiated verification to sensitive user actions.
Privileged access
Introduce greater verification depth for sensitive accounts.
Regulated industries
Stronger human verification where access carries greater consequences.
Multidimensional MFA can strengthen regulated systems, shared workstations, sensitive transactions and privileged access while creating reviewable authentication activity for audits and investigations.
Pharmaceutical & Life Sciences
Protect laboratory, quality and regulated business systems. Add stronger verification to approvals and maintain authentication evidence for review.
Regulated systems · Approval workflows · Audit evidenceFinancial Services
Strengthen workforce and customer access to financial applications, sensitive data and high-value transactions.
Sensitive transactions · Customer access · Risk responseHealthcare
Support clinicians and staff on shared workstations while protecting patient, clinical and administrative systems.
Shared workstations · Patient systems · Access evidenceBanking
Add verification depth to business email, customer services, privileged operations and access to sensitive financial systems.
Privileged access · Account protection · Audit trailsManufacturing
Secure shared plant-floor devices, operational applications and remote or privileged support without relying on a personal phone.
Shared devices · Operational access · Remote support
PROTECTION IN ACTION
Related threat protection
Phishing & Social Engineering
A copied sign-in page may capture credential text, but it may not contain the expected Human-Verified interaction or organizational sign-in experience.
- Require an intentional interaction instead of passive approval
- Use Company Visual DNA to reinforce the expected experience
- Combine authentication with contextual policy when risk changes
Verify the human
See Multidimensional MFA in your environment.
Explore how Rainbow Secure can add verification depth to your users, applications and existing access strategy.