OntoSecurity helps you hide and protect sensitive columns in Google Sheets™ with just a few clicks.

Simply enter a column header name, and the add-on will instantly hide it from view and lock it so other users cannot unhide or edit it. When needed, you can reset all protections and restore visibility in one click.

Perfect for teams handling payroll, student records, financial data, or any confidential information in shared spreadsheets.

Note: The spreadsheet owner can always unhide protected columns. If they do, the column becomes visible to all users.