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Because it's only like a Vigenere Cipher. Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array (page 60/119) key. History of Office Encryption Weak encryptions

In Excel passwords restrict modification of the workbook, a worksheet within it, or individual elements in the worksheet.

In Word and PowerPoint the password restricts modification of the entire document.

Passwords that do not encrypt, but restrict modification.

If the password can be determined through social engineering, the underlying cipher is not important.

Since Office 2007 they are hard to break, if a sufficient complex password was chosen. This is possible in all Microsoft Office applications. A password to encrypt a document restricts opening and viewing it.There are two groups of passwords that can be set to a document: Speak clearly into your microphone as you talk, the Windows Speech Recognition program inserts your words into the document.Microsoft Office password protection is a security feature to protect Microsoft Office documents (Word, Excel, PowerPoint) with a user-provided password. Open one of your documents or create a new one and place your cursor where you would like your dictated text to appear. The word "Off" appears next to the icon.Ĭlick the icon to switch the application into listening mode and launch Word 2007. A small window containing a microphone icon opens at the top of your screen. The wizard also returns you to the Speech Recognition control panel when you complete the training.Ĭlick "Start Speech Recognition" to launch the application. This wizard asks you to read text that it displays as the program learns to recognize your voice. The Wizard also returns you to the Speech Recognition control panel that contains other links you can click.Ĭlick "Train Your Computer to Better Understand You" and follow the instructions that the training wizard provides. It will ask you to perform a few tasks and inform you the microphone is ready when you complete those tasks. Click "Set up Microphone" to launch a wizard that helps you configure your microphone to work with Windows Speech Recognition.Ĭonnect your microphone to your computer and follow the steps that the wizard provides. Click "Speech Recognition" to open the Speech Recognition control panel.