According to statistics from cybersecurity research companies, more than 60% of people use the same password on multiple sites. Many are literally everywhere: social networks, mail, banks, online stores.

It seems convenient. In fact, it’s like opening an apartment, car, office and safe with one key. Lost one, lost everything.

How an attack on your accounts works

You don’t think about it, but hackers do. There is a well-developed attack scheme calledcredential stuffing(“stuffing with credentials”).

Here’s how it happens:

  1. Some medium-sized website is hacked – an online store, a forum, a food delivery service. Thousands of such leaks occur every year.
  2. The database with logins and passwords is made publicly available or sold on forums.
  3. Automatic programs (bots) begin to try these login/password pairs on thousands of other sites: Gmail, VKontakte, online banks, marketplaces.
  4. Where the password matches, the account has been hacked.

This entire process is automated and takes hours. There is no person – only scripts.

Real life example

You registered on the pizzeria website 5 years ago. Used email and passwordMasha1987. Two years later, the pizzeria’s website was hacked – but you didn’t know about it. The same password you use for Gmail. And for VKontakte. And for your personal account on the bank’s website.

A few months later, someone logs into your Gmail, sees emails from your bank, regains access to your banking app—and empties your account.

This is not a movie script. This happens every day to real people.

“But I add a number at the end” – it doesn’t work

Many people think that by slightly changing one password, they are protected:Masha1987on one site,Masha1988on the other,Masha1987!on the third.

It doesn’t work. Specialized password guessing programs know these patterns and check them automatically. Small variations of the same password can be cracked just as easily as the original.

Solution: Password Manager

A password manager is a program that stores all your passwords in encrypted form. You only need to rememberone master password— and for each site the manager generates and stores a unique random password of the formxKp$9mN#2vQr.

Popular password managers:

  • Bitwarden– free, open source, works on all devices. The best choice for most.
  • 1Password— paid, but very convenient, popular among professionals.
  • Built into iPhone/Safari(iCloud Keychain) – free, works great if you’re in the Apple ecosystem.
  • Built in Chrome/Android(Google Password Manager) – free, synchronized with your Google account.

“What if the password manager gets hacked?”

This is the most frequently asked question. Answer: Leading password managers use encryption that prevents even the companies themselves from knowing your passwords. Data is encrypted on your device before being sent to the servers. Without a master password, the database is just a meaningless string of characters.

Large password managers undergo regular independent security audits. This is many times more secure than a notebook, an Excel file, or one password for everything.

How to Switch to a Password Manager: Step-by-Step Plan

This doesn’t have to be done in one day. Here’s a calm plan:

Week 1:Install a password manager (for example, Bitwarden – free). Add 5-10 of the most important accounts there: mail, bank, social networks.

Weeks 2–4:Each time you log into the site, update your password to a new one generated by the manager. In a month, most important passwords will be unique.

Next:Just use it. The manager will offer to save new passwords automatically.

Two additional levels of protection

Two-factor authentication (2FA)Turn it on wherever you can: Google, VKontakte, Telegram, banking applications. Even if the password is leaked, they won’t be able to log in without the second factor. Use authenticator applications (Google Authenticator, Yandex.Key) instead of SMS – they are more reliable.

Unique email for important accountsIf you create a separate email specifically for banks and government services, and do not use it anywhere else, its address simply will not end up in the databases of spammers and hackers.

Conclusion

One password for everything is not a convenience, it is a risk. One hack of any small website can lead to loss of access to all your accounts at once.

A password manager solves this problem once and for all. It takes 15 minutes to install – and saves you potentially a lot of hassle, time and money in the future. This is one of the simplest and most effective steps towards digital security.