How Zecretly works

Zecretly replaces details in your documents on your computer before you share them, and puts them back afterwards.

Protect, share, restore.

1

Protect

Zecretly puts a protected copy next to the original. Names, addresses, account numbers and similar details become placeholders such as [PERSON_1]. Amounts and dates are shifted or replaced, depending on the level.

2

Share

You share the protected copy, for example with an AI. It contains only placeholders and shifted values, not your real details.

3

Restore

You open the answer with Zecretly again. The local case file puts the real values back. Numbers that the AI has recalculated are converted back as well.

What Zecretly detects.

Zecretly reads the text of your files and looks for details that point to people and clients.

People and companies

Names and company names become placeholders such as [PERSON_1]. The same name gets the same placeholder everywhere.

Addresses and contact

Addresses, email addresses and phone numbers.

Identifiers

IBANs, Swiss social security (AHV) numbers, UID and customer numbers. Swiss details are a focus.

Amounts and dates

Amounts, quantities and dates, including amounts with apostrophes such as 7,080. Depending on the level they are shifted or replaced with placeholders.

How amounts and dates are shifted.

On the Strong level the arithmetic stays consistent: an AI can keep calculating with the values without seeing the real ones.

A secret factor

Amounts and quantities are shifted with a secret factor. The same factor applies across the whole case file, so totals and shares still add up.

Dates by a few days

Dates are shifted by a few days, by the same span across the whole case file. The gaps between dates are preserved.

Converting back

When you restore, Zecretly divides numbers that the AI has recalculated by the factor again. The factor itself stays on your computer.

One case file per folder.

All files that sit directly in the same folder form a case file.

Same name, same placeholder

The files of a case file share placeholders, factor and date shift. That way an AI may mix placeholders from several files in one answer.

Subfolders are separate case files

Subfolders and each protection level form their own case files. A renamed or moved folder starts a new one.

30 days

A case file accepts new files for 30 days from the first file. After that a new one begins in the folder. The older one can still be restored.

Pasted text

Text that you protect with the shortcut has its own key.

Formats and what is preserved.

Zecretly works with the files you use every day.

Word, Excel, PowerPoint

The protected copy sits next to the original, and the restored file has the original format again.

PDF

PDFs are read as text. The layout is lost in the process. Scanned PDFs without a text layer are not read reliably.

Email

Email in .eml and .msg format.

Local and encrypted.

Everything on your device

Protecting and restoring run locally. Zecretly itself does not need the internet.

Encrypted case file

The mapping between placeholders and real values is stored encrypted (AES-256-GCM) in the folder %USERPROFILE%\.zecretly.

Deleted automatically

After 30 days without use, Zecretly deletes the mapping the next time it starts. In the settings you delete case files immediately.

Clipboard only on request

Zecretly accesses it only when you press Ctrl+Alt+Z or click Copy in Zecretly.

What Zecretly cannot do. Zecretly does not catch every value. Paraphrases, text inside images and scanned PDFs without a text layer are not read reliably, and with PDF the layout is lost. Look at the protected copy before you upload it.

Privacy begins before you share.

Try Zecretly with your next document.

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