Jovi Andreas
🔒 Security Expert 📋 ISO 27001 Certified ♿ ADA Compliant

Jovi Andreas

Security &
Compliance Expert

Deep expertise in ADA/WCAG compliance, ISO 27001, and cybersecurity across web, mobile, and API platforms. Real-world implementation experience.

Focus
ADA
Accessibility
Design
8 Rules
UX Principles
Standard
ISO
27001 Certified
Coverage
Full
Web+Mobile+API

ADA & WCAG Compliance

The Americans with Disabilities Act ensures digital accessibility for all users. WCAG 2.1 is the technical standard.

WCAG 2.1 Principles (POUR)

  • 1.
    Perceivable: Content must be perceivable to all senses. Provide text alternatives for images, captions for videos.
  • 2.
    Operable: All functionality must be keyboard-accessible. No time-dependent interactions.
  • 3.
    Understandable: Text must be readable. Consistent navigation. Predictable behavior. Clear error messages.
  • 4.
    Robust: Compatible with assistive technologies. Valid HTML/ARIA markup. Future-proof.

Compliance Levels

Level A

Minimum level. Basic accessibility requirements like alt text, color contrast, and keyboard navigation.

Level AA

Recommended target. Enhanced contrast ratios (4.5:1), proper heading structure, form validation.

Level AAA

Enhanced level. Highest contrast (7:1), sign language, extended audio descriptions. For specialized content.

Key Implementation Areas

Color & Contrast

Foreground/background contrast ratios. Don't rely on color alone. Support high contrast modes.

Keyboard Navigation

Logical tab order, visible focus indicators, keyboard shortcuts. No keyboard traps.

Screen Reader Support

Semantic HTML, ARIA labels, role attributes. Skip links for navigation.

Motion & Animation

Respect prefers-reduced-motion. Animations shouldn't distract or cause seizures.

Form Design

Associated labels, error identification, instructions. Validation must be clear.

Media Accessibility

Captions, transcripts, audio descriptions. Alternatives for time-based content.

Shneiderman's 8 Golden Rules of Interface Design

Timeless principles for creating intuitive, user-centered digital experiences. Hover to see examples.

1. Strive for Consistency

Consistent sequences of actions, terminology, color, and layout reduce cognitive load.

Real-World Example:

Use the same button style, placement, and labels across your app. If "Save" is a green button on one page, it should be green everywhere.

2. Enable Frequent Users to Use Shortcuts

Abbreviations, special keys, hidden commands accelerate interaction for experienced users.

Real-World Example:

Keyboard shortcuts (Ctrl+S for save), search filters, command palettes (Cmd+K). Power users want fast paths.

3. Offer Informative Feedback

Every action should have immediate, visible feedback. Keep users informed in real-time.

Real-World Example:

Loading spinners, progress bars, success messages, toast notifications. Users need confirmation their action was received.

4. Design Dialog to Yield Closure

Sequences should end with clear, satisfying conclusions. Users should never be left hanging.

Real-World Example:

Wizards with "Finish" buttons. Checkout flows with order confirmation. Clear next steps after form submission.

5. Offer Error Prevention & Recovery

Prevent problems before they occur. When they do, offer clear, constructive error messages.

Real-World Example:

Disable submit button until form is valid. "Unsaved changes?" warnings. Error messages that suggest fixes, not "Error 500".

6. Permit Easy Reversal of Actions

Undo/Redo capabilities reduce user anxiety. Don't require confirmation for reversible actions.

Real-World Example:

Undo/Redo in editors. Trash bins instead of permanent delete. Soft delete with recovery window for data.

7. Support Internal Locus of Control

Users want to feel in control, not controlled. Avoid automated actions they can't predict.

Real-World Example:

User-initiated actions, not auto-refreshes. Manual save vs. aggressive auto-save. Let users choose pagination speed.

8. Reduce Short-Term Memory Load

Minimize information retention. Make objects, options, and actions visible.

Real-World Example:

Visible navigation menus (not hidden drawers for everything). Inline help text. Recent searches. Avoid deep nesting.

ISO 27001 Information Security Management

The international standard for establishing, implementing, and maintaining an Information Security Management System (ISMS).

What is ISO 27001?

ISO 27001 is an internationally recognized certification that demonstrates an organization's commitment to managing information security. It provides a systematic approach to protecting sensitive data through risk assessment, treatment, and continuous monitoring.

Scope:

Applies to any organization managing digital and physical information assets across any industry.

Benefit:

Demonstrates compliance, reduces risk, improves trust with customers and stakeholders.

ISMS Core Components

Plan

Risk assessment, policies, scope definition, resource planning.

Do

Implement controls, training, awareness programs, operational procedures.

Check

Monitor performance, audit compliance, measure metrics, identify gaps.

Act

Continuous improvement, corrective actions, policy updates.

Annex A Control Areas (14 Domains)

1. Access Control

User access management, privilege escalation, password policies.

2. Cryptography

Encryption of data at rest & in transit, key management.

3. Physical & Environmental

Data center security, entry controls, environmental monitoring.

4. Communications & Operations

Change management, vulnerability management, backup & recovery.

5. Information Systems Acquisition

Secure development, supplier security, incident management.

6. Compliance

Legal requirements, audit, regulatory compliance.

7. Human Resources Security

Employee screening, training, termination procedures.

8. Organization of Information Security

Policies, responsibilities, coordination across departments.

9. Supplier Relationships

Third-party risk management, agreements, monitoring.

10. Asset Management

Inventory, classification, handling, disposal.

Web, Mobile & API Cybersecurity

Comprehensive security practices across all modern application architectures, based on OWASP standards.

🌐 Web Application Security

OWASP Top 10 2021 — Most Critical Web Vulnerabilities

1.
Broken Access Control

Users can access resources beyond their permissions.

🛡️ Mitigation: Role-based access, principle of least privilege, session management.

2.
Cryptographic Failures

Sensitive data exposed due to weak encryption or improper handling.

🛡️ Mitigation: TLS 1.2+, AES-256, secure key storage, data classification.

3.
Injection

SQL, NoSQL, OS, LDAP injection attacks.

🛡️ Mitigation: Parameterized queries, input validation, ORM frameworks.

4.
Insecure Design

Missing security requirements, threat modeling, or design patterns.

🛡️ Mitigation: Threat modeling, security requirements, code review.

5.
Security Misconfiguration

Default credentials, unnecessary features, error stack traces exposed.

🛡️ Mitigation: Hardening, minimal installation, security testing.

6.
XSS (Cross-Site Scripting)

Malicious scripts injected into web pages viewed by other users.

🛡️ Mitigation: Output encoding, CSP headers, sanitization.

7.
Authentication Failures

Weak password policies, session hijacking, credential stuffing.

🛡️ Mitigation: MFA, strong hashing, session timeout, rate limiting.

8.
CSRF (Cross-Site Request Forgery)

Attacker tricks user into performing unwanted actions.

🛡️ Mitigation: CSRF tokens, SameSite cookies, origin validation.

9.
Using Components with Known Vulnerabilities

Outdated libraries, unpatched dependencies, vulnerable frameworks.

🛡️ Mitigation: Dependency scanning, regular updates, SBOM.

10.
Insufficient Logging & Monitoring

Security events not logged or detected in real-time.

🛡️ Mitigation: Audit logs, SIEM, alerting, incident response.

📱 Mobile Application Security

OWASP Mobile Top 10 — Platform-Specific Threats

Insecure Authentication

Weak credential storage, biometric bypass, token expiration.

Insecure Data Storage

Plaintext passwords, PII in logs, unencrypted databases.

Insecure Communication

Certificate pinning missing, MITM vulnerabilities, HTTP fallback.

Insecure Code Quality

Buffer overflows, hard-coded secrets, debug code left in.

Insufficient Cryptography

Weak algorithms, predictable random generation.

Reverse Engineering

App obfuscation, jailbreak detection, root detection.

🔌 API Security

OWASP API Top 10 — Modern Integration Vulnerabilities

1. Broken Object Level Authorization (BOLA)

Access /api/users/2 to see user 2's data even if unauthorized. Implement ID checks.

2. Broken Authentication

Weak token generation, JWT validation missing, exposed credentials in API calls.

3. Broken Object Property Level Authorization

User sees restricted fields in API responses. Filter sensitive data from responses.

4. Unrestricted Resource Consumption

Rate limiting missing, expensive operations not throttled, DoS via API.

5. Broken Function Level Authorization

Admin endpoints accessible to regular users. Check authorization on all endpoints.

6. Unrestricted Access to Sensitive Business Flows

Bypass checkout, account limits, payment workflows. Validate transaction state.

7. Server-Side Request Forgery (SSRF)

API makes requests to arbitrary URLs. Whitelist endpoints, validate URLs.

8. Security Misconfiguration

Verbose error messages, debug mode on, unnecessary methods enabled (PUT/DELETE).

9. Improper Inventory Management

Undocumented API versions, deprecated endpoints still active.

10. Unsafe Consumption of APIs

Trusting third-party API responses without validation, injections via external APIs.

Knowledge Assessment Quiz

Question 1/12ADA/WCAG

What does WCAG 2.1 "Perceivable" require?

ISO 27001 Control Checklist

Interactive checklist of Annex A controls. Track your compliance journey.

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