Introducing SecureLint: Real-Time API Key & Secret Detection for Developers

The Problem Every Developer Faces

You're debugging a production issue at 2 AM. You paste your AWS access key into a Jira ticket to share context with a colleague. You hit send. Five seconds later, you realise what you just did.

By the time you revoke that key, automated scanners have already found it — bots scrape public and semi-public platforms continuously, 24/7.

This isn't a rare edge case. It is one of the most common causes of cloud account breaches in 2025–26. According to public breach reports, a majority of credential leaks originate not from sophisticated attacks but from developers accidentally exposing secrets in collaboration tools, emails, and web editors.

SecureLint exists to make that mistake impossible.

Introducing SecureLint — by VAPTLabs

SecureLint – Sensitive Data Protector is a Chrome extension that watches every text field you type into — GitHub Issues, Jira, Notion, ChatGPT, Gmail, VS Code Web, internal tools — and instantly detects and masks sensitive data as you type, before it can be seen or captured.

Built by the security team at VAPTLabs, SecureLint applies the same threat modelling used in enterprise VAPT engagements directly inside your browser — silently, locally, and in real-time.

Free to install.

How It Works

SecureLint injects a lightweight content script that monitors:

Standard and fields
contenteditable elements (Notion, Confluence, Linear, etc.)
Rich text editors: CodeMirror, Monaco, Ace, TinyMCE, CKEditor
Webmail compose windows (Gmail, Outlook, Yahoo Mail)
The moment a secret pattern is detected, it:

Masks it visually — AKIA*XXXX or sk-* depending on your masking mode
Colour-codes it by severity in the editor overlay badge
Fires an optional notification — fully controllable from Settings
All processing happens in under 50ms, using pure local regex pattern matching — zero network calls, zero ML loading, zero telemetry.

4-Level Risk Classification

Severity Examples
🔴 Critical
AWS access keys, GCP service accounts, RSA/EC private keys, PGP keys, certificates
🟠 High
Passwords, OAuth tokens, JWT secrets, database URLs (MongoDB, Redis, Postgres)
🟡 Medium
Email addresses, SSNs, Aadhaar numbers, credit card patterns, phone numbers
🔵 Low
Generic tokens, test credentials, low-entropy identifiers

100+ Detection Patterns

SecureLint recognises secrets across the full ecosystem:

Cloud: AWS, GCP, Azure, DigitalOcean, Cloudflare, Vercel
Dev tools: GitHub, GitLab, Bitbucket, npm, PyPI, Docker Hub
AI / APIs: OpenAI, HuggingFace, Anthropic, Stripe, Twilio, SendGrid, Slack
Databases: MongoDB, Redis, MySQL, PostgreSQL, Elasticsearch connection strings
Keys & Certs: RSA private keys, EC keys, PGP blocks, SSH private keys, JWT secrets
PII: SSNs, Aadhaar numbers, credit card patterns, IBAN, phone numbers

Context-Aware Masking Modes
🧠 Smart (default) Partial mask — sk-1234****5678 — lets you still debug while protecting the secret

🎭 Full Complete redaction — API_KEY — best for blog posts and documentation

📋 Compliance-Safe GDPR/PCI-DSS formatted output — best for audit logs and exports

🔍 Context-Aware Auto-detects development vs content writing mode based on URL and element type

Webmail DLP — Gmail, Outlook, Yahoo Mail

SecureLint adds a Data Loss Prevention layer to your email compose window:

Detects secrets before you hit Send
Shows a warning banner when sensitive content is detected
Enterprise users: checks if the recipient is outside your organisation domain
All checks are fully local — no email body is ever transmitted.

Privacy — Built Into the Architecture
For Free and Pro users:

100% local processing — nothing leaves your browser
No page content, typed text, or detected secrets are sent anywhere
Optional account sync for preferences only
For Enterprise users:

Masked incident reports (AKIA****XXXX) reach your admin dashboard only when IT explicitly enables it
Raw secret values are never transmitted
Visible "Enterprise Reporting — Active" banner inside the popup when active
Full policy: securelint.in/privacy

🏢 Enterprise Edition — For IT & Security Teams

SecureLint Enterprise gives your security team full visibility into credential hygiene across the organisation:

Centralised incident dashboard — which employee pasted what type of secret, on which site, at what time
Masked previews only — AKIA****XXXX — raw values never leave the device
Secret rotation alerts — trigger notifications before a leaked key causes damage
DLP compliance — meets requirements for SOC 2, ISO 27001, and internal security audits
Chrome policy deployment — push to every device without manual installs
Feature is OFF by default — only your IT admin can enable it.

🎁 Special Launch Offer — First Customer Gets 1 Year Enterprise Free

VAPTLabs is offering the first enterprise customer a full 1-year SecureLint Enterprise licence at no cost.

This includes the complete enterprise dashboard, centralised incident reporting, DLP controls, and dedicated onboarding support.

To claim this offer → contact us at [e-mail] with subject line: SecureLint Enterprise – First Customer

This offer is available on a first-come, first-served basis. One organisation only.

🛡️ Get a VAPT Audit Report with SecureLint Enterprise

When you adopt SecureLint Enterprise, VAPTLabs can pair it with a professional Vulnerability Assessment & Penetration Testing (VAPT) engagement for your organisation.

What this means for your team:

1. A full VAPT audit of your web applications, APIs, and internal tooling — conducted by the same team that built SecureLint

2. An official VAPT report suitable for compliance, client contracts, and insurance requirements

3. SecureLint Enterprise deployed across your workforce for continuous real-time credential protection

4. Together: proactive detection (SecureLint) + professional audit evidence (VAPT report) = a defensible security posture

Interested in bundling VAPT + SecureLint Enterprise? Reach out at [e-mail] or visit www.vaptlabs.com to learn more.

Who Is SecureLint For?
👨‍💻 Developers Catch hardcoded secrets before they leak in code reviews, tickets, or collaboration tools

🔐 Security Engineers Enforce secret hygiene across teams using web-based tools

✍️ Content Writers Auto-mask credentials before pasting into docs, guides, or emails

⚙️ DevOps Teams Prevent credentials from appearing in chat, Jira, CI dashboards, or runbooks

🏢 IT Admins Enterprise-wide DLP with centralised visibility, rotation alerts, and compliance reporting

Install Free Today
→ Add SecureLint to Chrome — Free

No account required. Full secret detection, auto-masking, and the editor overlay work immediately on install.

Links
🌐 Website: www.vaptlabs.com
🔒 Privacy Policy: securelint.in/privacy
📧 Enterprise & VAPT enquiries: [e-mail]
🛒 Chrome Web Store: SecureLint – Sensitive Data Protector

SecureLint is developed and maintained by VAPTLabs — a cybersecurity company specialising in VAPT, secure code review, and developer security tooling.