Passwords & Account Security: Keep Your Accounts Yours

Most accounts are taken through a reused password, a fake login page, a shared code or an unlocked phone. Close each of those doors, and know exactly what to do if an account is taken over.

25 min read · Content last verified 18 September 2026 · Reviewed by Shravya M

Before you start

This guide is the reading for Course 4 of the Digital Safety Pathway. It takes about 25 minutes to read. It covers the habits that keep your email, banking, social media and WhatsApp accounts yours: strong passwords, two-step verification, spotting fake login pages, securing your phone, and what to do if an account is taken over.

All names and examples here are made up.

Chapter 1: How accounts really get taken

Most accounts aren't "hacked" by genius. They're taken in a few ordinary ways:

  1. A reused password. One website you signed up to years ago leaks its password list. Criminals then try the same email and password on email, banking and shopping sites.
  2. A fake login page. A message sends you to a page that looks exactly like the real one, and you type your password into it.
  3. A shared code. Someone persuades you to read out an OTP or a verification code, which is the key to your account.
  4. An unlocked or infected phone, which receives all your codes.

Every chapter in this guide closes one of these doors.

The rule: Your password, your codes and your phone are three keys. Guard all three.

Chapter 2: A strong password is a long one

What makes a password weak

  • Anything someone could guess from your life: your name, a family member's name, your date of birth, your mobile number, your vehicle number, or your favourite team.
  • Short words with a number stuck on the end, like Priya@123.
  • Common patterns such as 12345678, password or qwerty.

What makes a password strong

Length. A long passphrase made of several unrelated words is much harder to guess than a short jumble, and easier to remember. For example (don't use this one): mango-bicycle-river-lantern.

  • Aim for at least four random words, or a long phrase that means something only to you.
  • Add a number or symbol if the site asks for one, but length matters most.

The rule: Long beats clever. Use a passphrase, not a password.

Chapter 3: One password per account

Why it matters

If you use the same password everywhere, one leak anywhere unlocks everything. Your email matters most of all, because it can reset the passwords of almost every other account.

How to manage many passwords

  • A password manager (built into your phone or browser, or a well-known app) can create and remember a different strong password for every account. You then need to remember only one strong passphrase.
  • If you don't use one, at least use completely different passwords for your email, your banking, and your main social media account.
  • Never tell anyone your password, including people claiming to be from your bank, your employer's IT team, or the app itself.

The rule: Every important account gets its own password. Your email gets the best one.

Chapter 4: Two-step verification

What it is

Two-step verification (also called two-factor authentication or 2FA) means that logging in needs something you know (your password) plus something you have (a code on your phone, a prompt in an app, or a security key). A stolen password alone is then not enough.

How to use it well

  • Turn it on for your email, social media, WhatsApp (two-step verification PIN) and any other account that offers it.
  • An authenticator app or an in-app prompt is generally harder to steal than an SMS code, because it doesn't depend on your SIM.
  • Only approve a login prompt that you started. If your phone asks "Is this you signing in?" and it isn't, say no and change your password.
  • Never share a verification code or OTP, whoever asks and whatever they say it's for. A code you're asked to read out is the key to your account or your money.

The rule: Turn on two-step verification, and never give anyone the code.

Chapter 5: Fake login pages

What it looks like

Suresh gets an email: "Unusual sign-in detected. Verify your account within 24 hours or it will be suspended." The button opens a page with the right logo and colours. The address bar says accounts-verify-login.help.

Why it works

The page looks right, and the message creates urgency. Whatever you type goes to the criminal.

The check

  • Don't sign in from a link in a message. Open the app, or type the website address yourself.
  • Read the web address. The Ministry of Home Affairs' job-fraud advice on cybercrime.gov.in points out that fake addresses often differ by a small spelling change, like companie.com or compaany.com instead of company.com, or .net instead of .com.
  • A padlock icon only means the connection is encrypted. It does not mean the site is genuine.

The rule: Sign in only from an app or an address you typed yourself.

Chapter 6: Your phone is the master key

Your phone receives your OTPs, holds your banking apps and opens your email. Protect it like a wallet with every card in it.

  • Lock screen: use a PIN, pattern or fingerprint, and set the screen to lock quickly.
  • Updates: install system and app updates; many fix security holes.
  • Apps: install only from your phone's official app store, never from a file sent in a message.
  • Lost or stolen phone: call your bank to block UPI and net banking on that number, get a duplicate SIM, file a police report, and block the phone through Sanchar Saathi. Our Sanchar Saathi guide walks through it.
  • Aadhaar biometric lock: UIDAI lets Aadhaar holders with a registered mobile number lock their biometrics (fingerprint, iris, face) through the myAadhaar portal or the mAadhaar app, so no one can use them for Aadhaar authentication until you unlock them.
  • Infected device? The government's Cyber Swachhta Kendra (csk.gov.in), run by CERT-In, offers free tools and advice for cleaning it.

The rule: Lock your phone, update it, and install apps only from the official store.

Chapter 7: If an account is taken over

Act quickly, from a device you know is safe.

  1. Change the password, and the password of any other account that used the same one. Start with your email.
  2. Log out of all other sessions or devices. Most apps have an option for this in their security settings. In WhatsApp, check Linked Devices.
  3. Turn on two-step verification if it wasn't on.
  4. Check your recovery email and phone number in the account's settings. Criminals often change them so they can take the account back later.
  5. Warn your contacts not to trust messages or files sent from the account while it was taken over.
  6. If money is involved, call 1930 or report at cybercrime.gov.in, and tell your bank the same day.

Warning: Anyone who contacts you offering to "recover" your account for a fee is running a second scam. Use only the app's own recovery process.

The rule: New password, log out everywhere, turn on two-step, check recovery details.

Quick reference card

  1. Passphrase: four or more random words. Long beats clever.
  2. One password per account. Your email gets the strongest.
  3. Use a password manager, or at least keep email, bank and social media different.
  4. Turn on two-step verification everywhere it's offered.
  5. Never share an OTP or verification code, with anyone.
  6. Sign in only from the app or an address you typed.
  7. Lock, update, and use the official app store on your phone.
  8. Hacked? Change password, log out everywhere, check recovery details, report to 1930 if money is involved.

Sources

Checked against these primary sources on 18 September 2026. Rules change: if something here looks out of date, trust the source.

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