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Introduction

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Advanced Office Password Recovery unlocks documents created with all versions of Microsoft Office ranging from Microsoft Office 2.0 to Microsoft Office 2019, as well as Office 365 and Microsoft 365. In addition, the tool supports many types of passwords protecting documents in OpenDocument and Hangul Office formats. Advanced Office Password Recovery can recover passwords for Microsoft Word, Excel, Access, Outlook, Project, Money, PowerPoint, Visio, Publisher and OneNote, all OpenOffice applications, and all applications comprising the Hangul/Hancell Office suite.

The features of the product can be divided into two major categories: instant removal of password protection and the recovery of original passwords via GPU-assisted attacks.

Instant Removal of Document Protection

Certain types of document protection can be removed momentarily and without lengthy attacks. Many types of restrictions such as “password to modify”, “VBA password” or “password to print” might be instantly removable.

In addition, certain types of “passwords to open” can be also removed instantly. By carefully analyzing the algorithms and implementations of password protection in different versions of Microsoft Office applications, Elcomsoft developed work-around solutions that allow recovering certain kinds of passwords instantly instead of performing lengthy attacks.

Recovers Passwords to Open

When implemented properly, a password-to-open encrypts the entire content of the document, making instant removal impossible. Advanced Office Password Recovery implements a number of highly sophisticated attacks including Dictionary attacks, Mask attacks, Combination and Hybrid attacks. If nothing else helps, a highly optimized, hardware-accelerated Brute-force attack can be used.

Guaranteed Document Recovery

Legacy versions of Microsoft Word and Microsoft Excel employed weak 40-bit encryption to protect documents. This type of encryption can be easily broken with modern computers and appropriate tools. Attacking 40-bit encryption keys is not just significantly faster than enumerating the possible combinations of letters and numbers, but guarantees the recovery time frame regardless of how long and complex the password was. The Home edition can brute-force the entire range of 40-bit keys, while the Forensic Edition can decrypting legacy Word documents and most legacy Excel files in a matter of minutes using Elcomsoft Thunder Tables.


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