Howto Bypass Microsoft Word Security

Security Tracker reports how to get a “secured” Microsoft Word document and change the password to a blank field.

As explained on

Thorsten Delbrouck describes in this SecurityTracker post how to bypass Microsoft Office security features:

1.) Open a protected document in MS Word
2.) Save as “Web Page (*.htm; *.html)”, close Word
3.) Open html-document in any Text-Editor
4.) Search “” tag, the line reads something like that: ABCDEF01
5.) keep the “password” in mind
6.) Open original document (.doc) with any hex-editor
7.) search for hex-values of the password (reverse order!)
8.) Overwrite all 4 double-bytes with 0x00, Save, Close
9.) Open document with MS Word, Select “Tools / Unprotect Document” (password is blank)

tsk tsk (*shakes head*)