# Spreadsheet Sentry - real spreadsheet security


> Spreadsheet Sentry provides real spreadsheet security by encoding spreadsheets so that even authorized users are prevented from editing or viewing confidential data and designated spreadsheet formulas




- [Media Releases – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/media-releases.html): Spreadsheet Sentry offers real security for Excel spreadsheets by providing robust, persistent and affordable content security and location security

- [Features – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/spreadsheet-sentry-features.html): Spreadsheet Sentry works by using cell-based encryption, i.e. it individually encrypts designated formula and data cells using the effectively unbreakable 128-bit AES/Rijndael encryption algorithm

- [FAQ – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/spreadsheet-sentry-FAQ.html): Spreadsheet Sentry FAQ provides information such as what the limitations to what can be done with an encoded spreadsheet are, and how to activate Spreadsheet Sentry licenses

- [Content and Location Security] (https://www.spreadsheetsentry.com/content-and-location-security.html): Spreadsheet Sentry provides both content and location security

- [Formula Auditing – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/spreadsheet-sentry-formula-auditing.html): Use formula auditing to ensure that your spreadsheet is still operating correctly

- [Employee theft of spreadsheet IP – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/employee-theft.html): The biggest danger to a company’s IP is often from authorized users.  Surveys indicate a wide concern about spreadsheet security (including the possibility of employee theft of spreadsheet IP)

- [About Us – Software Security Ltd] (https://www.spreadsheetsentry.com/about-us.html): Software Security Ltd (based in Wellington, New Zealand) is a software development company specializing in protection of intellectual property stored in standard documents such as Excel spreadsheets

- [Benefits – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/spreadsheet-sentry-benefits.html): Spreadsheet Sentry gives you control over who may use your spreadsheet, and (even for authorized users) prevents viewing of formulas, and prevents viewing of confidential data

- [Product Releases – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/product-releases.html): Spreadsheet Sentry was first released for general use in December 2006 and continues to be developed with upgrades being released on a regular basis

- [Operation – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/spreadsheet-sentry-operation.html): The Spreadsheet Sentry Encoder program is used to encode a spreadsheet so that only authorized users can use it. An activated Spreadsheet Sentry Client is required to then use the encoded spreadsheet

- [User Comments – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/user-testimonials.html): Enthusiastic customer feedback for protection of intellectual property contained in Excel spreadsheets, ease of use, lock down to just activated PCs, and superb customer support

- [Upgrade from ExcelSentry] (https://www.spreadsheetsentry.com/upgrade.html): Upgrading from ExcelSentry to Spreadsheet Sentry

- [Limitations of Excel’s ‘protection’ – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/limitation-of-excel-protection.html): Native Excel protection is extremely weak - this password-based Excel protection can be broken very easily, and is designed to reduce unintentional changes by users rather than provide strong security

- [Links – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/external-links.html): Useful Excel and spreadsheet security links

- [Contact Us – use Spreadsheet Sentry for real spreadsheet security] (https://www.spreadsheetsentry.com/contact-us.html): Contact us for any questions about Spreadsheet Sentry or spreadsheet security

- [Download Spreadsheet Sentry Personal – real spreadsheet security] (https://www.spreadsheetsentry.com/spreadsheet-sentry-download.html): Download a Personal version of Spreadsheet Sentry. Spreadsheet Sentry Personal is fully functional except that encoded spreadsheets can only be used on the same PC that they were encoded on










- [Excel Tips] (https://www.spreadsheetsentry.com/blog/244279): Excel tips and help categorized by topic

- [Pearson Software Consulting] (https://www.spreadsheetsentry.com/blog/244278): "Over 250" pages of useful Excel information, including well-documented VBA sample code

- [The Spreadsheet Detective] (https://www.spreadsheetsentry.com/blog/244277): Spreadsheet auditing tool

- [Decision Models - The Excel Calculation Site] (https://www.spreadsheetsentry.com/blog/244276): Excel calculation speed optimization; FastExcel tool for analyzing spreadsheet calculations

- [MrExcel.com] (https://www.spreadsheetsentry.com/blog/244275): Excellent Excel forum, with many active participants

- [Excel Easy] (https://www.spreadsheetsentry.com/blog/852386): Excel tutorials and samples

- [www.bettersolutions.com/excel.aspx] (https://www.spreadsheetsentry.com/blog/244281): Excel tutorials and references

- [www.exinfm.com/free_spreadsheets.html] (https://www.spreadsheetsentry.com/blog/244280): Example spreadsheets; site also has links to other resources