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Why some encrypted and/or nested archives pass through undetected?

April 26, 2017Archives encrypted nested pass undetected

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Why some encrypted and/or nested archives pass through undetected?

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This applies to F-Secure Anti-Virus for Microsoft Exchange versions 6.30, 6.30 Service Release 1 and 6.31. In some cases the product is not able to detect encrypted or nested archives in e-mail or public folder messages. This problem has been corrected in F-Secure Anti-Virus for Microsoft Exchange 6.3x Hotfix 2, available on the F-Secure Anti-Virus for Microsoft Exchange hotfix download page. F-Secure recommends all the F-Secure Anti-Virus for Microsoft Exchange users to apply this hotfix.