HomeWindowsComponent Object Model (COM) Error – SEC_E_MESSAGE_ALTERED 0x8009030F

Component Object Model (COM) Error – SEC_E_MESSAGE_ALTERED 0x8009030F

In this post, you’ll learn about the error “SEC_E_MESSAGE_ALTERED 0x8009030F” that is returned when working with COM based APIs or libraries in Windows.

COM Error Message

SEC_E_MESSAGE_ALTERED 0x8009030F

What is COM?

Microsoft’s COM stands for Component Object Model. Component Object Model (COM) is a networked, object-oriented framework for building interoperable binary software components.   Microsoft’s OLE (compound documents), ActiveX (Internet-enabled components), and other products are built on the COM base technology.

Error Description

Below is the description of this COM Error.

The message or signature supplied for verification has been altered

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