Why keeping passwords in a spreadsheet is risky

In most small and mid-sized companies, passwords start out in a spreadsheet. Over time the file is called passwords_FINAL_v2.xlsx, a few copies travel by e-mail, and nobody is sure which one is current. This post explains why the habit is risky and what to do instead.

1. Whoever gets the file gets everything

A spreadsheet is a single key: whoever opens it opens every account in it. The file sits on a laptop, in an e-mail attachment, on a USB stick or in a cloud folder. When one of these is lost or compromised, the question is not which accounts are affected but which ones are not.

Excel's "protect with password" helps, but often the whole team knows the file password, and that password was usually shared in a chat group.

2. You cannot know who knows what

Everyone who opens the file sees every password. The accountant should reach only the accounting software and the social media lead only the ad panel, but a file cannot make that distinction. When someone leaves, you cannot tell which passwords they saw, so you either change all of them or none.

3. There is no history

When did a password change, who changed it, who copied it? A spreadsheet records none of this. When you see suspicious activity on an account, there is no record to look back on.

4. Copies multiply

"Send me a copy too" ends with many versions of the same file. Someone updates a password in one copy while others keep trying the old one. In the end the right password turns up in a chat group and stays there.

5. Verification codes cannot live in a file

Most marketplace, advertising and accounting panels now ask for two-step verification. The code often goes to one employee's phone. A spreadsheet cannot solve that: the password is with the team, the code in one person's pocket.

What to do instead

The aim is to move what the file holds somewhere safer without losing anything:

1. Clean the file. Remove accounts no longer used and merge duplicate rows.
2. Group accounts by team. Marketplace, advertising, accounting. Each group becomes a vault shared with the people who need it.
3. Import into a password manager. A good one reads Excel and CSV files. Passhield reads the file in your browser and adds it to a vault encrypted; the file is never sent to the server.
4. Change weak and reused passwords. Moving is a good moment to review them.
5. Delete the file. From the computer, e-mail attachments and the cloud folder. As long as a copy exists, so does the risk.

For a step-by-step walk-through see our guide from a spreadsheet to a password manager. To see how strong the passwords in your file are, try the password strength checker.

In short

A spreadsheet looks practical for a small team at first, but it is blind to sharing, history and offboarding. A password manager solves all three together: who can reach what, who saw what, and what must change when someone leaves.