WhatsApp, Signal, and Telegram — step by step

Messaging apps are where most people talk, organize, work, and share sensitive information. They’re also one of the most common ways accounts get compromised — not because the apps are weak, but because they’re often set up incorrectly.

This guide walks you through simple, practical steps to secure WhatsApp, Signal, and Telegram. No technical knowledge required.

As you read, you’ll probably recognize things you haven’t done yet. That’s normal. At the end, you’ll see how to check your personal risk level and get a custom action plan using Hexabelt.

First, a hard truth

Most messaging account takeovers happen because of:

• Shared or stolen verification codes
• Weak or missing PINs
• Old devices still connected
• Backups stored insecurely
• Phones that aren’t properly locked

You don’t need malware. You don’t need hacking skills.
You just need one mistake.

Part 1: Secure WhatsApp

1. Turn on Two-Step Verification (this is critical)

This adds a PIN that protects your account even if someone gets your SMS code.

How to do it:

• WhatsApp → Settings → Account → Two-step verification
• Enable it
• Choose a PIN you won’t forget
• Add an email if prompted (this helps recovery)

If this is not enabled, your account is one SMS away from takeover.

2. Check linked devices

Attackers often stay connected quietly on a computer.

Do this now:

• Settings → Linked devices
• Log out of anything you don’t recognize
• If unsure, log out of all devices

3. Lock WhatsApp itself

Even if someone unlocks your phone, they shouldn’t see your messages.

• Settings → Privacy → Screen lock
• Enable fingerprint, face, or phone PIN

4. Control who can see your info

Reduce how much strangers can learn about you.

• Profile photo: My contacts
• Status: My contacts
• Groups: My contacts (or “My contacts except…”)

Part 2: Secure Signal

Signal is strong by default — but only if you finish the setup.

1. Enable Registration Lock

This prevents someone else from registering Signal with your number.

• Signal → Settings → Account → Registration Lock
• Set a PIN
• Do not reuse your phone PIN

2. Lock the app

• Settings → Privacy → Screen lock
• Enable biometric or PIN lock

3. Disable message previews

This stops messages from appearing on your lock screen.

• Settings → Notifications → Show previews → Off

4. Check linked devices

• Settings → Linked devices
• Remove anything you don’t recognize

Part 3: Secure Telegram

Telegram is powerful — and risky if left open.

1. Set a Two-Step Verification password

Telegram accounts get hijacked constantly because people skip this.

• Settings → Privacy and Security → Two-Step Verification
• Set a strong password
• Add a recovery email

No password = high risk.

2. Review active sessions

• Settings → Devices
• End all sessions you don’t recognize
• Consider ending all other sessions entirely

3. Lock the app

• Settings → Privacy and Security → Passcode Lock
• Enable and use biometrics if available

4. Control who can find and contact you

• Phone number visibility: My contacts
• Who can add you to groups: My contacts
• Calls: My contacts or Nobody

Part 4: The mistake almost everyone makes — backups

Backups can undo all your security.

• WhatsApp backups on Google Drive or iCloud may not be encrypted
• If someone accesses your cloud account, they may access your messages

Ask yourself:

• Do I know where my backups are stored?
• Are they protected with a strong password?
• Is my email account secure?

If you don’t know the answer, that’s a gap.

Part 5: The phone itself matters

Even perfectly configured apps are useless if your phone is weak.

Minimum requirements:

• Strong phone PIN (not 1234, not birthday)
• Auto-lock enabled (30 seconds–1 minute)
• OS updates installed
• No unknown or suspicious apps

Messaging security is account security + device security.

Now be honest with yourself

While reading this, did you think:

• “I didn’t enable that”
• “I never checked that”
• “I’m not sure how that’s set up”

That means your risk is personal, not theoretical.

Everyone’s setup is different.
Everyone’s exposure is different.
Generic advice only goes so far.

This is where Hexabelt comes in

Hexabelt doesn’t just give tips.

It:

• Assesses your actual messaging setup
• Identifies your specific vulnerabilities
• Gives you a personalized action plan
• Lets you ask an AI Security Agent for instant help

Instead of guessing, you can see exactly:

• Where you’re exposed
• What matters most for you
• What to fix first

Take the next step

If messaging apps matter to your work, safety, or organization:

• Run a Hexabelt assessment now by clicking here
• Find gaps in your messaging security and other security areas
• Get a personalized plan in minutes
• Track your progress towards maximum security

Reading guides helps.
Knowing your real risk is better.

Click here to get started.