Barclays - credit card transactions appearing from wrong customer

Description

We have a customer with a Barclaycard account who is seeing transactions for a completely different customer. They are both Barclaycard customers, and both on our platform.

We can see the raw data for the incorrect transactions, but we don't detect any error, since the AccountId corresponds to the correct customer in the data.

The transactions are retrieved for both the correct and incorrect customers - the AccountId and TransactionId are different in the raw data, but everything else is the same, including CardInstrument and BookingDateTime.

This is happening for lots of transactions, especially in October.
One partially redacted example transaction which we received for the wrong customer is:

We found the same transaction for the correct customer:

Technical Impact

Transaction data received for wrong connection, for wrong customer.

Workaround

None

Resolution Notes

None

Impact Assessment

Customer is seeing transactions for a different customer, representing a personal data breach.

Status

Assignee

Unassigned

Reporter

Service Desk

Reference

None

Service Desk Reference

OBSD-12494

Query Type

None

Created (Original)

Dec 02, 2019, 4:08 PM

TPP Impact

None

TPP

Issue Summary

None

OB Environment

None

Business Impact Severity

Level 1

Share

Yes
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