How to fix the Oracle error ORA-12656: Cryptographic checksum mismatch?

In this post, you’ll learn more about the Oracle ErrorORA-12656: Cryptographic checksum mismatch with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12656: Cryptographic checksum mismatch

Reason for the Error ORA-12656: Cryptographic checksum mismatch

The cryptographic checksum received with a packet of incoming data didn’t match the checksum computed by the receiving end. This indicates that the packet was tampered with or otherwise corrupted in transit.

How to fix the Error ORA-12656: Cryptographic checksum mismatch ?

You can fix this error in Oracle by following the below steps

Look for sources of data corruption, perhaps including deliberate tampering.