Four Walls of Investigation
Unauthorized Review Steps Investigative Actions
Account Take Over
100

In which CST/ Galileo Tab can analysts efficiently review prior merchant history?

Account Info >> Account Details

100

When can we use EMV denials?

Card In Possession Claims

There’s atleast 1 EMV transactions


100

It is a type of identity theft whereby an unauthorized user gains access to a customer’s account through the use of compromised credentials for the unlawful purpose of removing, stealing, affecting (etc.) the funds within the account.

Account Takeover or ATO

200

What are the tools that analysts can use to check Transaction Details? Select all that apply.

CST/ Galileo

Admin Tool

Visa Resolve Online

200

In which types of transactions can Geo- Location be used as denial? Select all that apply.

PIN- based Transactions

Signature- based Transactions

200

It allows the user to look for any account activity that indicates someone other than the member has gained access to the online account.

SIO Tracks View Events

300

A cardholder filed a dispute for an unauthorized card present transaction stating that the card is lost/stolen but the PIN is memorized. Which of the Four Walls of Investigation is needed to be reviewed to see if the disputed transaction is PIN-based and to check the amount, merchant, and date of the transaction?

Transaction Details

300

In which types of transactions can Prior Transaction(s) with the Merchant be used as denial?

PIN- based Transactions

Signature- based Transactions

Online/ MOTO Transactions

300

Upon investigation, the phone number was changed prior and after the disputed transaction/transfers, a new device accessed the online account and initiated the transfers, multiple failed login attempts and multiple devices accessing the account within minutes of each other. Are those considered as examples of ATO?

Yes

400

A cardholder filed a dispute for unauthorized transactions that occurred on their account. The cardholder stated that they never received their replacement card and never activated it. Which of the Four Walls of Investigation is needed to be reviewed to verify this cardholder's story? Select all that apply.

IP/ IVR Records

Call History

400

In which types of transactions can Undisputed Card Present Transactions in between and/or after the Disputed Transaction(s) be used as denial?

PIN- based Transactions

Signature- based Transactions

400

Which of the following tools allows the analysts to review a member’s Chime app/Online account activity?

Looker (IP Log)

500

What are the Four Walls of Investigation?

Reviewing IP/ IVR Records

Reviewing Call History

Reviewing Transaction Details

Reviewing Transaction History

500

When can PIN-based denials be used? Select all that apply.

The disputed transaction/s is/are PIN-based.

The card is lost/stolen.

The cardholder stated that their PIN is memorized.

500

Provide some common ATO: Red Flags.

Suspicious online account activity

Multiple changes to PII within a short period of time

Multiple failed logins to the online account

New IP addresses or devices accessing the online account

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