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Security

Forget about spam, advertising mailings, hacking and attacking robots. Keep your real mailbox clean and secure. Temp Mail provides temporary, secure, anonymous, free, disposable email address: https://temp-mail.org.

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Protecting MS Excel Worksheets with passwords can be user-friendly. No one fiddles with the configuration. Yet, if you need to administer the sheets, lost passwords are a pain. So, in case you need to unprotect a sheet – and obviously only if you have the right to do so! – the folling VBA code snippet can help:

Sub LittleMagicPasswordBreaker()
    Dim i As Integer, j As Integer, k As Integer
    Dim l As Integer, m As Integer, n As Integer
    Dim i1 As Integer, i2 As Integer, i3 As Integer
    Dim i4 As Integer, i5 As Integer, i6 As Integer
    
    On Error Resume Next
    For i = 65 To 66: For j = 65 To 66: For k = 65 To 66
    For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66
    For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66
    For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126
    
    ActiveSheet.Unprotect Chr(i) & Chr(j) & Chr(k) _
        & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
        Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
    If ActiveSheet.ProtectContents = False Then
        MsgBox "One usable password is " & Chr(i) & Chr(j) & _
            Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _
            Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
        Exit Sub
    End If
    Next: Next: Next: Next: Next: Next
    Next: Next: Next: Next: Next: Next
End Sub

 
Just open the VBA editor ([Alt]+[F11]), copy the snippet into a new VBA Module of the Excel worksheet, and execute (Run or [F5]).

Credits to: https://www.iseepassword.com/crack-ms-excel-password.html#part1

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The qaul.net-software implements a redundant, open communication principle, in which wireless-enabled computers and mobile devices can directly form a spontaneous network. Text messaging, file sharing and voice calls are possible independent of internet and cellular networks. Qaul.net can spread like a virus, and an Open Source Community can modify it freely. It runs on MacOS, iOS, Windows, Ubuntu, Android alike: https://github.com/qaul/qaul.net.

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A secure solution for file and email encryption. Gpg4win (GNU Privacy Guard for Windows) is Free Software and assists in sending emails via Outlook etc. using PGP: gpg4win.de.

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Threema is a proprietary encrypted instant messaging application for iOS, Android and Windows Phone. In addition to text messaging, users can send multimedia, locations, voice messages and files: threema.ch/en.

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Telegram is a cloud-based instant messaging service. Telegram clients exist for both mobile (Android, iOS, Windows Phone, Ubuntu Touch) and desktop systems (Windows, macOS, Linux). Users can send messages and exchange photos, videos, stickers and files of any type. Telegram also provides optional end-to-end-encrypted messaging, which has been criticized by security experts because of its custom nature: telegram.org.

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Freeware Download Active@ Kill Disk – disk eraser software for secure formatting of hard drives without any possibility of following data recovery: www.killdisk.com.

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