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Why Storing Passwords in a Spreadsheet Is a Bad Idea

Why Storing Passwords in a Spreadsheet Is a Bad Idea

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Storing your passwords in a local spreadsheet seems like the logical solution to save space in your brain. It’s free, and you’re using software you’re already familiar with. But it isn’t safe.

Spreadsheets store data in plain text, with no built-in encryption. This makes them particularly vulnerable to theft, malware, and accidental sharing. So where should you store your passwords?

Spreadsheet with stored passwords

To prevent any unwanted security breaches, a dedicated password manager is the more secure alternative.

While it may not seem as straightforward as your trusty spreadsheet, we guarantee that the advantages outweigh any learning curve.

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Why so many people still store passwords in spreadsheets

Many of us turn to spreadsheets for data storage purposes. It’s a familiar solution, easily available, and, above all else, free.

Moreover, spreadsheets are relatively easy to use and offer various customization options for maximum organization – columns for website, username, password, and even any necessary notes.

If this sounds familiar, rest assured that you’re not alone. And if you must store your passwords in a spreadsheet, make sure to password-protect your file to minimize risks.

However, a spreadsheet still lacks key features for effortless, secure password management.

The risks of keeping passwords in a spreadsheet

Your passwords are stored in plain text

Plain text means no encryption, which means anyone who can open your file can read everything. Unfortunately, even password-protected files can easily be cracked with free, online tools.

On the other hand, password managers like Keeper offer multi-layered encryption that encrypts data locally with specialized keys, ensuring your information is unreadable even if it’s accessed by unauthorized users.

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Starting price: $1.67/mo
Main features
  • Zero-knowledge encryption
  • Cross-platform support
  • One-time share
  • Passkey support
  • Strong security
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  • Cross-platform autofill
  • Limited free plan
  • Dark web monitoring costs extra
  • No custom categorization
Summary
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Keeper is a reliable password manager with strong security fundamentals.

The software is built on a zero-knowledge architecture and uses AES-256 encryption, meaning your data is encrypted on your device before it reaches Keeper's servers. The password manager generates passwords with up to 100 characters and supports passkeys for quick authentication.

We found the apps responsive across platforms, with automatic syncing and reliable autofill through KeeperFill. Organization works through folders and subfolders, though you can’t create custom categories.

Personal plans start at $3.54 per month, while Family covers five users for $8.71 monthly (both billed annually). The 30-day free trial doesn’t require a credit card, and there are occasional promotions that offer up to 30% off. Better yet, if you sign up through our affiliate link, you get an exclusive discount of 50%

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Malware actively targets spreadsheet files

Without any encryption, spreadsheet files are easy targets for malware.

Modern credential-stealing malware, such as RedLine and Raccoon, specifically scans for password files on infected devices. Once found, these spreadsheets can be exfiltrated and sold on the dark web in the blink of an eye.

Unfortunately, this isn’t simply a theoretical risk, but a well-documented, active attack vector. Protection against malware is key to effectively secure your passwords.

Cloud-synced spreadsheets multiply your exposure

Even more dangerous than a spreadsheet saved locally is a spreadsheet that’s synced to the cloud – whether that be to Google Drive, OneDrive, or Dropbox.

Woman working on her laptop

Once your files are cloud-synced, they’re available on multiple devices, making them all that much more vulnerable. If you store Google Sheets passwords in a shared or compromised account, every credential in that file can become exposed at once.

Sharing permissions alone can compromise your security, as your files may already have been copied or downloaded even after you revoke permissions.

Lack of breach monitoring

Breach monitoring provides real-time insight into leaked data and vulnerable accounts, and immediately alerts you if your data is exposed.

However, spreadsheets are static, meaning that there’s no monitoring and there’s no way to know ahead of time if your credentials are included in a data breach. When you find out, it’s already too late.

Password managers with breach monitoring proactively alert you, ensuring you can take the necessary measures to protect your data.

Protected data

Manual management leads to bad habits

If you’re using a spreadsheet to store your passwords, chances are you’re:

  • Reusing passwords;
  • Not updating them as often as you should;
  • Completely overlooking some.

Not only is this manual management a hassle, but it’s also actively endangering your data security.

While outdated passwords can be a problem, reused passwords are an even bigger one – you may be a victim of credential stuffing. This is a cyberattack that exploits password reuse through automated tools that test massive lists of real credentials.

Password managers keep your passwords in check, reminding you to update them, preventing you from reusing them, and letting you easily save new passwords right on the platform you need them for.

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"But I password-protected my spreadsheet – isn't that enough?"

Password-protecting your spreadsheet isn’t enough, as there are many tools available online that can easily bypass it. You can think of password-protection as installing a lock on a screen door – breaching it requires no technical skill, just malicious intent.

In the case of spreadsheets such as Google Sheets, they rely solely on your Google account’s security. If anyone is able to access your Google account, they can easily access your spreadsheets and any stored passwords.

Using Excel spreadsheet passwords may feel safer, but Excel’s built-in protection is still not strong enough for storing sensitive login details.

Password managers keep all your details secure through real encryption. Even if someone has your file.

What you should use instead

Toss the spreadsheet and get yourself a tool that is built specifically to protect your data.

A password manager is built for secure password storage, combining encryption, breach alerts, and safer sharing in one place.

Password managers like Keeper also implement a zero-knowledge architecture, meaning that not even the company behind your preferred password manager can access your data.

Woman checking her Keeper vault

Additional perks often include autofill, breach monitoring, cross-device sync, and secure sharing. Some providers also support biometric login. For additional peace of mind, we recommend looking for companies that have never been breached.

While moving all your passwords from a spreadsheet to a password manager may seem daunting, password managers have been around long enough to make this process easier.

Many providers support CSV import, making it much easier to move from a spreadsheet to a password manager without rebuilding your vault from scratch.

Bottom line

At the end of the day, spreadsheets weren’t built to store sensitive data like your passwords.

Moving from a spreadsheet to a password manager can feel like a great undertaking. However, nowadays this generally only entails a one-time import via solutions such as Keeper, which even provide cross-device access from day one.

And the peace of mind from knowing your data is more secure than ever before? Priceless.

Playing safe now and making the switch can prevent serious problems in the future should the wrong people get their hands on your passwords.

FAQ

Is it safe to store passwords in Google Sheets?

No. Google Sheets does not use end-to-end encryption by default, meaning Google can access your data. If your Google account is compromised, so are all your passwords.

Can you password-protect an Excel spreadsheet to keep passwords safe?

Password-protecting an Excel spreadsheet isn’t enough. Excel’s password protection is not true encryption and can be bypassed easily. It does not protect against malware or unauthorized access to files.

What's the safest way to store passwords?

A dedicated password manager with end-to-end encryption. All data is encrypted locally, so only you can access it, and it also offers additional features such as breach monitoring and secure sharing.

What happens if my password spreadsheet is stolen?

As it lacks real encryption, anyone who opens the file can immediately see all your credentials. There is no way to protect your data once the file is in someone else’s hands, and your only option is to update all your passwords.

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