It’s the nightmare scenario every developer dreads: you push your code to GitHub… and later discover you accidentally uploaded an API key, database password, or token that anyone in the world can now see.

It happens way more often than most people realize and that’s exactly what win3zz highlights in their gist GitHub-Leaked-API-Keys-and-Secrets. The write-up breaks down how sensitive credentials can unintentionally end up in public repositories, how attackers look for them, and why developers must take this risk seriously.

This isn’t a hacking manual. It’s a wake-up call.

Let’s break down what this gist teaches, why it matters, and how you can protect yourself.

🔍 The Core Search Syntax Template

Here is the general-purpose pattern from the gist:

(path:*.{File_extension1} OR path:*.{File_extension-N}) AND ({Keyname1} OR {Keyname-N}) AND (({Signature/pattern1} OR {Signature/pattern-N}) AND ({PlatformTag1} OR {PlatformTag-N})) 

In simpler words:

• File extensions → Where secrets are most likely to appear

• Key name variants → Common variable names developers use

• Signature patterns → Prefixes or structures unique to API keys

• Platforms → Brand identifiers such as “OpenAI”, “Slack”, “Google”, etc.

This approach helps filter out false positives and zero in on real leaked secrets.

🧪 Real Examples from the Gist

Below are some of the best examples from win3zz’s write-up, rewritten for clarity but keeping their structure.

1️⃣ OpenAI API Keys

(path:*.xml OR path:*.json OR path:*.properties OR path:*.sql OR path:*.txt 
OR path:*.log OR path:*.tmp OR path:*.backup OR path:*.bak OR path:*.enc 
OR path:*.yml OR path:*.yaml OR path:*.toml OR path:*.ini OR path:*.config 
OR path:*.conf OR path:*.cfg OR path:*.env OR path:*.envrc OR path:*.prod 
OR path:*.secret OR path:*.private OR path:*.key)
AND
(access_key OR secret_key OR access_token OR api_key OR apikey OR api_secret 
OR apiSecret OR app_secret OR application_key OR app_key OR appkey OR auth_token OR authsecret)
AND (/sk-[a-zA-Z0-9]{48}/ AND (openai OR gpt))

2️⃣ GitHub OAuth / App / Personal / Refresh Tokens

(path:*.xml OR path:*.json OR path:*.properties OR path:*.sql OR path:*.txt 
OR path:*.log OR path:*.tmp OR path:*.backup OR path:*.bak OR path:*.enc 
OR path:*.yml OR path:*.yaml OR path:*.toml OR path:*.ini OR path:*.config 
OR path:*.conf OR path:*.cfg OR path:*.env OR path:*.envrc OR path:*.prod 
OR path:*.secret OR path:*.private OR path:*.key)
AND
(access_key OR secret_key OR access_token OR api_key OR apikey OR api_secret 
OR apiSecret OR app_secret OR application_key OR app_key OR appkey OR auth_token OR authsecret)
AND
(("ghp_" OR "gho_" OR "ghu_" OR "ghs_" OR "ghr_") AND (Github OR OAuth))

3️⃣ Slack Tokens

(path:*.xml OR path:*.json OR path:*.properties OR path:*.sql OR path:*.txt 
OR path:*.log OR path:*.tmp OR path:*.backup OR path:*.bak OR path:*.enc 
OR path:*.yml OR path:*.yaml OR path:*.toml OR path:*.ini OR path:*.config 
OR path:*.conf OR path:*.cfg OR path:*.env OR path:*.envrc OR path:*.prod 
OR path:*.secret OR path:*.private OR path:*.key)
AND
(access_key OR secret_key OR access_token OR api_key OR apikey OR api_secret 
OR apiSecret OR app_secret OR application_key OR app_key OR appkey OR auth_token OR authsecret)
AND
(xox AND Slack)

4️⃣ Google API Keys

(path:*.xml OR path:*.json OR path:*.properties OR path:*.sql OR path:*.txt 
OR path:*.log OR path:*.tmp OR path:*.backup OR path:*.bak OR path:*.enc 
OR path:*.yml OR path:*.yaml OR path:*.toml OR path:*.ini OR path:*.config 
OR path:*.conf OR path:*.cfg OR path:*.env OR path:*.envrc OR path:*.prod 
OR path:*.secret OR path:*.private OR path:*.key)
AND
(access_key OR secret_key OR access_token OR api_key OR apikey OR api_secret 
OR apiSecret OR app_secret OR application_key OR app_key OR appkey OR auth_token OR authsecret)
AND
(AIza AND Google)

5️⃣ Square OAuth / Access Tokens

(path:*.xml OR path:*.json OR path:*.properties OR path:*.sql OR path:*.txt 
OR path:*.log OR path:*.tmp OR path:*.backup OR path:*.bak OR path:*.enc 
OR path:*.yml OR path:*.yaml OR path:*.toml OR path:*.ini OR path:*.config 
OR path:*.conf OR path:*.cfg OR path:*.env OR path:*.envrc OR path:*.prod 
OR path:*.secret OR path:*.private OR path:*.key)
AND
(access_key OR secret_key OR access_token OR api_key OR apikey OR api_secret 
OR apiSecret OR app_secret OR application_key OR app_key OR appkey OR auth_token OR authsecret)
AND
(("sq0atp-" OR "sq0csp-") AND (square OR OAuth))

6️⃣ Shopify Shared Secrets & App Tokens

(path:*.xml OR path:*.json OR path:*.properties OR path:*.sql OR path:*.txt 
OR path:*.log OR path:*.tmp OR path:*.backup OR path:*.bak OR path:*.enc 
OR path:*.yml OR path:*.yaml OR path:*.toml OR path:*.ini OR path:*.config 
OR path:*.conf OR path:*.cfg OR path:*.env OR path:*.envrc OR path:*.prod 
OR path:*.secret OR path:*.private OR path:*.key)
AND
(access_key OR secret_key OR access_token OR api_key OR apikey OR api_secret 
OR apiSecret OR app_secret OR application_key OR app_key OR appkey OR auth_token OR authsecret)
AND
(("shpss_" OR "shpat_" OR "shpca_" OR "shppa_") AND "Shopify")

🧭 How to Use This Search Syntax (Safely & Responsibly)
These searches are powerful but with great power comes ethical responsibility.
Here’s how to use them the correct way.

For Researchers: Practice Responsible Disclosure

Paste a query into GitHub’s search bar:

1. Open https://github.com/search

2. Click in the search bar

3. Paste the query

4. Review any results that appear

If you see something that looks like a secret, treat it as exposed and rotate it immediately.

❌ Never use these queries to exploit leaked credentials

Accessing services using leaked keys even unintentionally is illegal and unethical.
The purpose of these queries is defensive security, not offensive misuse.

🔍 What’s Actually in the Gist?

At its core, the gist is a knowledge resource showing how people search for leaked secrets on GitHub.

Many developers don’t realize that GitHub’s built-in search is powerful enough to locate things like:

• API keys

• OAuth tokens

• AWS access keys

• Database connection strings

• JWT secrets

• Cloud provider credentials

• Private service tokens

The gist outlines common patterns and keywords that intentionally or not developers commit into their repos. Even simple things like:

api_key =
secret =
auth_token
client_secret

can expose sensitive information if not properly scrubbed.

The key message?
If something looks like a secret, GitHub’s search engine can find it.
And if GitHub can find it… so can attackers.

🧨 Why This Is a Serious Problem

1. Leaked secrets are a goldmine for attackers

A single exposed API key can allow malicious actors to:

• Access private databases

• Run up cloud bills

• Hijack services

• Steal data

• Impersonate users

• Pivot deeper into an organization

This isn’t hypothetical entire breaches have started with nothing more than an AWS key left in a commit message.

2. Leaked secrets live forever unless you remove them

Even if you delete the file later, Git history remembers everything.
Attackers routinely scan:

• Repo history

• Forks

• Archived versions

• Caches

• Mirrors

Once a secret appears in a commit, assume it is compromised.

3. Automated scanners scan GitHub constantly

GitHub is one of the most actively scanned platforms on Earth.
Attackers use scripts that check for newly added secrets within minutes of a push.

If you leak a key, speed matters.

🛠 What Developers Should Do (Immediately)

🧭 For Security Researchers: Act Responsibly

The gist is also valuable for penetration testers and bug bounty hunters looking for exposed secrets ethically. If you find a leaked key, always:

• Report it privately

• Don’t test or validate the credential (that’s unauthorized access)

• Give the repo owner time to rotate keys

• Provide helpful remediation guidance

Responsible disclosure protects everyone.

🎯 Final Thoughts

Win3zz’s gist highlights a major truth:
Attackers are already scanning GitHub. Developers and organizations must do the same proactively, responsibly, consistently.

These search patterns provide a powerful toolset for auditing and strengthening security hygiene across codebases. When used ethically, they help prevent real-world breaches and protect both developers and end users.

GitHub is a fantastic platform but it won’t protect your secrets for you.