ScamShield App Guide: Singapore's Free Tool to Block Scam Calls and SMS

What Is ScamShield?

ScamShield is a free government app developed by GovTech and the National Crime Prevention Council (NCPC) of Singapore. It's designed to protect you from the growing wave of scam calls and fraudulent SMS messages that plague Singapore residents.

With over 1 million downloads, ScamShield has become an essential tool in Singapore's anti-scam arsenal.

What ScamShield Can Do

Feature	Description
Filter scam SMS	Automatically detects and filters scam text messages
Block scam calls	Blocks known scam numbers before they ring
Report scams	Easy one-tap reporting of suspicious messages and calls
ScamShield Bot	WhatsApp bot to check suspicious messages, links, or numbers
AI detection	Uses artificial intelligence to identify scam patterns
Crowdsourced data	Improves detection with reports from other users

How to Set Up ScamShield

Step 1: Download the App

ScamShield is available on both iOS (App Store) and Android (Google Play Store). Search for "ScamShield" and look for the official app with the government logo.

Step 2: SingPass Authentication

For full features, ScamShield requires SingPass authentication. This links your identity to the app and enables:

• Enhanced call filtering
• Personalized scam detection
• Full reporting capabilities

Step 3: Enable Permissions

The app needs certain permissions to work:

Permission	Purpose
Call identification	To screen and block scam calls
SMS filtering	To detect and filter scam messages
Notifications	To alert you about blocked attempts

Step 4: Configure Settings

Once set up, customize your preferences:

• Choose how aggressively to filter calls
• Set up SMS filtering sensitivity
• Enable or disable notifications for blocked items

The ScamShield WhatsApp Bot

One of ScamShield's most useful features is its WhatsApp Bot. You can:

1. Check suspicious messages — Forward any suspicious text to the bot for analysis
2. Verify links — Send a URL to check if it's a known scam link
3. Check phone numbers — Enter a number to see if it's been reported as a scam

This is particularly useful when you receive messages through channels that ScamShield doesn't directly monitor.

How ScamShield's AI Works

ScamShield uses machine learning algorithms trained on:

• Thousands of confirmed scam messages
• Known scam phone numbers
• Patterns identified from user reports
• Integration with IMDA's SMS Sender ID Registry (SSIR)

The SSIR integration is particularly important — it helps verify that SMS messages claiming to be from legitimate organizations (banks, government agencies) actually are. When a message comes from an unregistered sender ID, ScamShield flags it.

The ScamShield Helpline: 1799

Beyond the app, you can reach the ScamShield helpline at 1799 — available 24/7. Call if you:

• Need to report a scam in progress
• Want to verify if something is a scam
• Need guidance after being scammed
• Want to report a scam number or message

What ScamShield Cannot Do

It's important to understand ScamShield's limitations:

• Does NOT guarantee 100% protection — new scam methods can slip through
• Cannot recover lost money — it's preventive, not corrective
• Cannot monitor all messaging apps — it primarily works with standard calls and SMS
• Cannot protect against all phishing — you still need to exercise caution with links

This is why layered security is essential. Even with ScamShield active, you should still:

• Verify unsolicited contacts independently
• Never share OTPs or SingPass credentials
• Use secure channels for sensitive information

Beyond ScamShield: Secure Your Communications

ScamShield blocks known threats, but it can't encrypt your personal communications. When you need to share sensitive information — bank details, insurance documents, passwords, or personal data — use a service like LOCK.PUB to create password-protected links that expire automatically.

Think of it this way: ScamShield is your shield against incoming threats. LOCK.PUB is your vault for outgoing sensitive data. Together, they provide comprehensive protection.

Frequently Asked Questions

Is ScamShield really free?

Yes, completely free. No premium version, no hidden costs.

Does ScamShield collect my personal data?

ScamShield collects only the minimum data needed to function. It doesn't read your personal messages — it only analyzes incoming messages from unknown senders.

Can I use ScamShield without SingPass?

You can install the app without SingPass, but full features require SingPass authentication.

How often is ScamShield updated?

The app receives regular updates with new scam patterns and improved detection algorithms.

Take Action Today

1. Download ScamShield from your app store
2. Authenticate with SingPass for full protection
3. Enable all permissions for maximum coverage
4. Save 1799 in your contacts for the 24/7 helpline
5. Share this guide with family members, especially elderly relatives who are prime targets

ScamShield is your first line of defense. For sharing sensitive information securely, pair it with LOCK.PUB. Stay protected, stay vigilant.